IPC Reform List II - Selective Coverage

IPC Reform List II contains the IPC codes from the 2006 IPC Reform and subsequent updates that are selectively covered by CAS.

Patent documents from countries not listed here are automatically selected for further examination.

Patent documents with one or more of these IPC codes are automatically selected for coverage if they are issued by the following countries or patent offices:

No.CODECOUNTRY
1AMArmenia
2APAfrican Regional Industrial Property Organisation
3ATAustria
4AUAustralia
5BABosnia and Herzegovina
6BGBulgaria
7BOBolivia
8BYBelarus
9CACanada
10CLChile
11CNChina, Peoples Republic of
12CSCzechoslovakia
13CUCuba
14CYCyprus
15CZCzech Republic
16DEGermany
17DODominican Republic
18EAEAPO (Eurasian Patent Organization)
19ECEcuador
20EGEgypt
21EPEPO (European Patent Office)
22FRFrance
23GBUnited Kingdom
24GCGulf Cooperation Council
25GEGeorgia
26GRGreece
27GTGuatemala
28HKHong Kong
29HNHonduras
30HRCroatia
31HUHungary
32IDIndonesia
33IEIreland
34ILIsrael
35INIndia
36IRIran
37ISIceland
38JOJordan
39JPJapan
40KEKenya
41KGKyrgystan
42KRKorea, Republic of
43KZKazakhstan
44LTLithuania
45LULuxembourg
46LVLatvia
47MAMorocco
48MEMontenegro
49MKMacedonia
50MNMongolia
51MTMalta
52MWMalawi
53MXMexico
54MYMalaysia
55NINicaragua
56NZNew Zealand
57PAPanama
58PEPeru
59PHPhilippines
60PKPakistan
61PYParaguay
62RORomania
63RSSerbia
64RURussia
65SASaudi Arabia
66SGSingapore
67SISlovenia
68SKSlovakia
69SMSan Marino
70SUUSSR
71SVEL Salvador
72THThailand
73TJTajikistan
74TNTunisia
75TTTrinidad and Tabago
76TWTaiwan
77UAUkraine
78USUnited States
79UYUruguay
80UZUzbekistan
81VEVenezuela
82VNVietnam
83WOWIPO (World Intellectual Property Organization)
84YUYugoslavia
85ZASouth Africa
86ZMZambia
87ZWZimbabwe
Class/SubclassSubject MatterGroups Selectively Covered in CA
A: HUMAN NECESSITIES
A01CPlanting, sowing and fertilizing1/00-3/00, 14/00, 21/00
A01DHarvesting; Mowing69/12
A01GHorticultureall groups
A01HNew plants; plant reproduction by tissue cultureall groups
A01JManufacture of dairy products00/00, 5/013, 7/02-7/04, 11/00, 15/00, 25/00,25/11, 27/00-27/02, 99/00
A01KAnimal husbandry1/015, 31/00, 43/00, 61/00, 61/10-61/51, 61/54,61/57-61/59, 61/90-61/95, 67/00-67/033, 67/0271, 67/0273,67/0275,67,0276,67/0276, 67/0278,85/00-85/01, 91/00, 91/12, 91/18
A01LShoeing of animals1/00, 5/00, 15/00
A01MCatching or trapping of animals1/00-1/02, 1/14-1/20, 3/04, 5/06, 29/12, 29/28,99/00
A01NBiocides, pesticides, herbicides, and plant growth regulators00/00-25/34, 63/00-65/48
A01PBiocidal, pesticidal, herbicidal, and plant growth regulating activityall groups
A21BBaking equipmentall groups
A21CDough processing equipmentall groups
A21DBaking additives and preservatives00/00-2/00, 2/34-17/00
A22BSlaughteringall groups
A22CProcessing meat, poultry and fishall groups
A23BFood preserving; chemical ripeningall groups
A23CDairy productsall groups
A23DEdible oils or fats, e.g. margarines, cooking oils and shortenings00/00-7/00, 7/015-9/00, 9/02-9/06
A23FCoffee, tea and their substitutesall groups
A23GCocoa, chocolate, confectionery, ice creamall groups
A23JProtein and phosphatide compositions for foodall groups
A23KFodderall groups
A23LMiscellaneous food preparation and preservation00/00-3/32, 3/3418, 3/3445, 3/3472, 3/3571, 3/3589-3/365, 3/375-3/40, 3/44-35/00
A23NApparatus for treating fruits and vegetablesall groups
A23PShaping or working of foodstuffsall groups
A24BManufacture and preparation of tobacco00/00, 3/00, 3/12-3/14, 13/00-13/02, 15/02-15/08, 15/167, 15/22-15/24
A24CMachines for making cigars and cigarettes3/00-5/01, 5/46
A24DCigars, cigarettes and filters00/00, 1/06-1/10, 1/18, 1/22-3/00, 3/06-3/17
A24FSmokers requisites1/32, 40/00, 40/44, 40/70, 42/00-42/10, 42/80
A41BShirts, underwear, baby linen and handkerchiefs3/10, 3/16, 17/00
A41CCorsets; brassieres1/04
A41DOuterwear and protective garments19/015, 31/00-31/32
A41GArtificial flowers; wigs; feathers00/00, 3/00-5/02, 11/00
A42BHats; head coverings1/011-1/012, 1/019-1/0195, 3/00, 3/06, 3/10
A42CManufacturing of hats1/08-2/00
A43BFootwear features and parts1/00, 1/023-1/028, 1/10-1/14, 3/04, 3/08, 9/16-9/20, 13/00-13/04, 13/12, 13/16-13/18, 13/22, 13/32, 13/42, 17/14, 21/00-21/02, 21/04-21/08, 21/14, 21/18-21/20, 21/26, 21/32, 21/47, 21/54, 23/07, 23/16-23/17
A43DEquipment and methods for footwear repair and manufacture87/00, 95/06
A44BButtons, pins, and other fasteners1/02
A45CPurses; luggage5/02
A45DHairdressing and shaving equipment; manicuring and other cosmetic treatment00/00-1/00, 4/14, 7/00-7/06, 19/00, 31/00, 33/38, 37/00, 97/00
A46BBrushes3/02-3/04
A46DBrush manufacture1/00-1/045
A47CChairs, sofas and beds5/00-5/04, 5/12, 7/16-7/20
A47GHousehold or table equipment25/36
A47HFurnishings for windows or doors23/02, 23/08-23/14
A47JKitchen equipment36/02-36/04
A47KSanitary equipment; toilet accessories13/02
A47LDomestic washing or cleaning13/17, 13/19
A61BDiagnosis, surgery and identification00/00-1/00, 5/00, 5/0275-5/028, 5/0515, 5/0537, 5/117, 5/14-5/1486, 5/1495, 5/155-5/157, 5/262-5/27, 6/40, 6/42, 6/46, 6/50, 6/51, 6/58, 10/00, 17/20, 17/42-17/435, 18/00-18/06, 18/14-18/16, 19/02-19/08, 34/00-46/27, 50/30-90/98
A61CDentistry; oral or dental hygieneall groups
A61DVeterinary tools or methods9/00, 19/00-19/04
A61FProstheses, bandages, dressings, absorbent pads, etc.00/00-2/44, 2/82, 2/844-2/97, 5/44-5/441, 5/443, 6/00-6/10, 6/14, 6/20-6/22, 13/00-13/24, 13/36, 13/44, 13/47-13/475, 13/51-13/511, 13/513-13/514, 13/53-13/535, 13/537-13/539, 13/84
A61GMedical furnishings; funeral devices17/007
A61JMedical or drug containers; devices for administration of drugs00/00-1/14, 1/18-3/10
A61KMedical, dental and toilet preparations00/00, 6/15-6/19, 7/00-7/155, 7/26, 7/40-8/18, 8/92-9/10, 9/12-9/26, 9/48-9/54, 9/68-9/72, 35/00-36/9068, 39/00-45/08, 47/46, 48/00-50/00, 125/00-135/00
A61LSterilization, disinfection and deodorization00/00-9/015, 9/03-15/10, 15/14-15-20, 15/36, 15/40-101/56
A61MMedical delivery and transduction devices00/00-1/00, 1/12-1/38, 5/00, 5/38, 15/00-15/02, 16/10-16/18, 16/22, 29/04-36/00, 36/14-37/00, 60/00, 60/104-60/113, 60/36-60/38, 60/837, 60/843, 60/876, 60/886-60/888, 99/00
A61NElectrotherapy, magnetotherapy, radiation therapy or ultrasonic therapy1/04-1/05, 1/44, 2/10, 5/00
A61PTherapeutic activity of chemical compoundsall groups
A61QUse of cosmetics or toiletriesall groups
A62BLife-saving devices and apparatus7/00, 7/06-7/10, 15/00-18/06, 19/00-23/06, 29/00, 37/00
A62CFire-fighting00/00-2/00, 2/10, 3/00, 3/06, 5/00-5/033, 8/06-8/08, 13/02-13/70, 31/00, 31/07-31/12, 39/00, 99/00
A62DChemical fire extinguishing agents, protectants against harmful chemicals and materials for breathing apparatusall groups
A63BSports equipment37/02-37/08, 37/12-37/14, 39/06-39/08, 41/02,
49/10-49/12, 51/02, 53/10-53/12, 59/45, 59/51, 59/54, 60/08
A63CSkis and skates5/056, 5/14
A63DBowling games and billiards1/04
A99ZSubject matter not otherwise provided forall groups
B: PERFORMING OPERATIONS; TRANSPORTING
B01BBoiling and boiling apparatusall groups
B01DSeparation00/00-3/10, 3/14-7/00, 8/00, 13/04, 17/00-53/46, 53/73-53/85, 53/88, 53/92, 53/96-57/02, 61/06-61/12, 61/18-61/34, 61/46-61/54, 63/00-65/04, 65/10-69/14, 159/00
B01FMixing, dissolving, emulsifying or dispersing00/00-15/06, 21/00-35/95, 101/00, 101/04-101/59
B01JChemical or physical processes00/00-8/46, 13/00-13/12, 13/20-13/22, 19/00-19/12, 19/18-19/32, 35/20-35/73, 35/80, 47/14-49/90
B01LChemical or physical laboratory apparatusall groups
B02BGrain preparation5/00
B02CCrushing, pulverizing or disintegratingall groups
B03BSeparating solids using liquids00/00-1/00, 1/04, 5/00, 5/28-5/46, 5/60-5/66, 7/00-9/04
B03CMagnetic or electrostatic separation00/00-1/025, 1/32-3/04, 3/16-3/30, 3/38, 3/41-3/45, 3/53-3/64, 3/74-3/80, 3/84, 3/88-11/00
B03DFlotation and differential sedimentation00/00-1/001, 1/02-1/14, 3/00-103/10
B04BCentrifuges00/00-1/00, 3/00, 5/00, 5/04-5/08
B04CFree vortex flow apparatus00/00-3/00, 5/00, 7/00
B05BSpraying and atomizing apparatusall groups
B05CApparatus for applying liquids to surfaces00/00-1/00, 3/00, 5/00, 7/00, 9/00, 19/00-19/02
B05DProcesses for applying fluent materials to surfacesall groups
B07BSeparating solids from solids00/00-1/00, 4/00-7/00, 9/00-9/02, 13/00
B08BCleaning and prevention of fouling00/00, 3/00-5/00, 6/00-7/00, 7/04-9/02, 9/08, 9/093, 9/40, 11/00, 17/00-17/02
B09BSolid waste disposal00/00, 1/14, 1/40, 1/52, 3/00-5/00, 101/00-101/95
B09CReclamation of contaminated soil00/00-1/06, 1/10, 101/00
B21BRolling of metal00/00-1/08, 1/12-1/30, 1/46-3/02, 9/00, 27/06, 28/00-28/04, 99/00
B21CManufacture of metal sheet, wire, rods, tubes or profiles00/00-1/00, 1/16-1/20, 9/00-9/02, 23/00, 23/22-23/26, 23/32, 35/06-37/00, 99/00
B21DWorking or processing of metal products26/053-26/055, 26/08-26/12, 37/01, 37/18
B21FWorking or processing of wire19/00-21/00, 99/00
B21JForging, hammering, pressing or riveting1/00-1/02, 1/06-3/00
B22CFoundry molding00/00, 7/00-9/04, 9/10-9/12, 9/18, 15/268
B22DCasting of metals00/00-1/00, 3/00, 7/00-7/02, 11/00, 11/059, 11/07, 11/10, 11/108-11/113, 11/116-11/119, 13/00, 15/00, 17/00, 18/00-18/06, 19/00-19/10, 19/16-25/00, 25/04-27/00, 27/18-27/20, 41/02, 41/28-41/32, 41/36, 41/44-41/48, 41/52-41/54
B22FManufacture and working of metallic powder00/00, 1/05-1/18, 3/00-12/90
B23CMilling5/28
B23HMetal working via electric or electrochemical process00/00-1/00, 1/04-3/00, 3/04-7/00, 7/08, 7/12, 7/22-7/24, 7/34-11/00
B23KSoldering, welding, cladding or plating by applying heat locally00/00-1/018, 1/08, 1/19-1/20, 5/00, 5/10-5/16, 5/213, 7/00, 7/08, 9/00-9/013, 9/14-9/18, 9/23-9/26, 10/00-10/02, 11/16-11/20, 11/30, 11/34, 13/00, 13/06, 15/00, 15/10-20/00, 20/14-20/24, 23/00-26/00, 26/066, 26/12-26/211, 26/32-26/352, 26/356, 26/36-26/362, 26/40-26/42, 26/60, 28/00, 31/00-31/02, 31/12, 35/00, 35/04, 35/08-35/10, 35/14, 35/18-35/40, 101/34-101/42
B23PMetal working00/00, 6/00-9/00, 17/00-17/06, 25/00
B24BGrinding or polishing1/00, 5/50, 7/20, 9/02-9/16, 9/20, 19/22, 31/112-31/116, 37/11-37/14, 37/20-37/24, 53/00-53/017, 53/095
B24CAbrasive blasting1/00, 1/04-1/08, 11/00
B24DGrinding tools00/00-5/04, 5/14, 7/00-7/04, 7/14, 7/18, 11/00-11/04, 13/12, 17/00-18/00, 99/00
B25DPercussive tools1/00, 17/26
B25GHandles1/10-1/12
B26BCutting tools19/40, 21/58-21/60
B27DWorking veneer or plywood00/00-1/00, 1/04, 5/00
B27KStaining, dyeing, impregnation and bleaching of wood and similar materials00/00-1/00, 3/00-3/04, 3/08, 3/12, 3/44-3/48, 5/00-9/00
B27LDebarking3/00
B27NManufacture of articles from wood-based materials00/00-3/14, 5/00-9/00
B28BShaping of clay, ceramic or cementitious material00/00-1/00, 1/093, 1/14-1/26, 1/30-1/32, 1/54, 7/34-7/40, 7/44, 11/00, 11/04-11/06, 11/22-11/24, 17/02, 19/00-21/04, 21/08, 21/92-21/94
B28CPreparing clay00/00-1/10, 1/20-5/00, 5/40, 9/00-9/02
B28DWorking stone5/00
B29BProcessing and recycling of plasticsall groups
B29CShaping or joining of plasticsall groups
B29DProduction of plastic articlesall groups
B29KMolding material indexing scheme associated with processing subclasses B29B, C or D00/00, 21/00, 105/00-105/14, 105/20, 105/24-105/34, 503/08
B29LIndexing scheme associated with subclass B29Call groups
B31BMaking paper or cardboard containers50/60-50/66, 50/88, 70/60-70/66, 70/88
B32BLayered products00/00, 5/00-23/18, 25/00-25/12, 29/00-38/00, 38/06-38/18, 43/00
B33YAdditive manufacturing technologyall groups
B41CProcesses for making or reproducing printing surfaces00/00-1/00, 1/055-1/06, 1/10-1/12, 1/16, 3/00, 3/04-3/06
B41JSelective printing mechanisms2/005-2/02, 2/135, 2/16, 2/195-2/20, 2/315-2/325, 2/335-2/34, 2/385, 2/425, 2/435, 2/445, 2/46, 2/48, 17/34, 19/12, 27/04, 31/00-31/08
B41KStamps; stamping or numbering apparatus1/38, 1/50
B41LCommercial apparatus for printing or duplicating1/36
B41MPrinting and copying00/00-1/42, 3/12, 5/00-5/128, 5/14, 5/16-5/26, 5/34-5/38, 5/398-7/02, 99/00
B41NPrinting plates or foils; materials for printing machine surfaces00/00-1/00, 1/04-1/16, 1/20-6/02, 99/00
B42DBooks3/02, 25/00, 25/30, 25/324-25/333, 25/355-25/47, 25/48, 101/00-107/00, 113/00, 119/00
B44CProducing decorative effects00/00-1/00, 1/04, 1/16-1/22
B44DPainting or artistic drawing; preservation of paintings00/00, 5/00-5/08, 5/12-7/00
B60BVehicle wheels, castors and axles1/08, 3/06, 5/00-5/02, 9/10, 9/16
B60CVehicle tires00/00-1/00, 7/10, 9/00, 9/12-9/16, 17/00, 17/10-19/12, 99/00
B60JVehicle windows, roofs and doors10/00, 10/15-10/18, 10/34-10/35
B60RVehicles and vehicle parts and fittings13/00-13/08, 19/18-19/22, 19/30, 21/217, 21/235, 21/26, 21/264-21/272
B60WVehicle control units20/15-20/16, 20/18
B62KCycles19/02-19/06, 19/16
B62MRider or powered propulsion of vehicles6/80-6/90
B63BShips5/24, 32/57-32/59, 32/62, 73/40-73/46, 73/70-73/74, 83/40
B63HMarine propulsion or steering11/00, 11/09, 11/12-11/16
B64DAircraft equipment15/00, 15/06-15/10, 37/30-37/34
B64GCosmonautics1/46-1/48, 1/54, 1/58, 9/00
B65BApparatus and methods for packaging00/00-1/00, 1/04, 1/20, 1/28-1/30, 3/00, 3/04, 3/22, 3/26, 31/00, 31/10, 55/00-55/04, 55/08-55/12, 55/16-55/19, 55/22
B65CLabelling apparatus and processes5/00-5/04
B65DContainers for storage or transport00/00-1/00, 1/26-1/28, 5/56, 5/62, 6/00, 8/00, 13/00-13/02, 19/08, 19/18, 19/28, 19/32, 23/02, 23/08, 25/14, 25/34, 27/14-27/18, 30/00-30/04, 33/18-33/22, 35/06-35/08, 39/18, 41/12-41/14, 41/18, 41/24, 41/42-41/44, 41/48, 41/54, 53/00-53/10, 63/02, 63/10, 65/00, 65/38- 65/46, 81/24-81/30, 85/84, 88/26, 88/72, 90/04, 90/30, 90/34, 90/38-90/44
B65FGathering or removal of domestic refuse7/00
B65GTransport or storage devices3/00-3/04, 15/32-15/34, 15/38, 47/58, 47/62, 53/00, 53/04-53/30, 69/00-69/02, 69/06, 69/10-69/12, 69/18-69/20
B65HHandling of thin or filamentary material71/00
B67BOpening or closing containers1/03
B67CLiquid filling or emptying of containers3/10
B67DDispensing liquids5/00-7/06, 7/32, 7/36, 7/42-7/48, 7/52-7/54, 7/58-7/82, 9/00-9/02, 99/00
B68GMethods and equipment in upholstery1/00-3/02, 5/00-5/02, 11/00-11/02, 11/04
B81BMicrostructural devices or systemsall groups
B81CManufacture or treatment of microstructural devices or systemsall groups
B82YApplication, analysis and treatment of nanostructuresall groups
B99ZSubject matter not otherwise provided forall groups
C: CHEMISTRY; METALLURGY
C02FTreatment of water, wastewater, sewage or sludge00/00-1/26, 1/30-1/40, 1/48, 1/74, 3/00-3/34, 7/00-9/06, 9/10-11/131, 11/143-103/44
C03BManufacture, shaping or supplementary processes for glass, mineral or slag wool00/00-7/22, 9/00-37/012, 37/02-40/04
C03CChemical compositions and surface treatment of glass, mineral or slag wool19/00, 25/10-25/226, 25/50-25/64, 25/68-29/00
C04BLime, magnesia, cements, ceramics, and refractories7/36-7/52, 18/00-20/12, 111/00, 111/30-111/94
C05FOrganic fertilizersall groups
C05GFertilizer mixtures3/20-3/90, 5/10-5/40
C06BExplosives or thermic compositions00/00, 21/00
C06CDetonating or priming devices, fuses, chemical lighters and pyrophoric compositions00/00-9/00
C06FMatches and their manufacture00/00-1/26, 3/06, 5/00-5/04
C09HPreparation of glue or gelatin1/00-1/04, 9/00-9/04
C09JAdhesives5/00-7/50
C09KMaterials for miscellaneous applications3/00-3/32, 15/34-17/00, 17/04, 17/10, 17/32-17/34, 17/52, 101/00-109/00
C10BDestructive distillation of carbonaceous materialsall groups
C10CWork-up of tar, pitch, asphalt or bitumen00/00-1/06, 1/14-1/19, 3/00, 3/06-3/18
C10FWork-up or drying of peatall groups
C10GPetrochemistry7/12, 9/04, 9/08-9/32, 9/40-9/42, 21/30, 71/02, 99/00
C10JProduction of fuel gases00/00, 3/22-3/44, 3/50-3/52, 3/72-3/86
C10LFuels5/42-5/48, 11/06-11/08
C10NIndexing scheme associated with subclass C10M20/06, 40/00-40/25, 40/30-50/10
C11CFatty acids and chemical modification of fats, oils or fatty acids5/00-5/02
C11DDetergent compositions and soaps13/10-13/28, 17/00-17/08
C12CBrewing of beerall groups
C12FRecovery of byproducts of fermented solutions3/06-3/10
C12GWine and other alcoholic beverages00/00-1/02, 1/024-1/036, 1/06-1/09, 1/14-3/10, 3/14
C12HPasteurization, sterilization, preservation, purification, etc., of alcoholic beverages00/00-1/02, 1/06-1/08, 1/12, 1/16-1/22, 6/00-6/04
C12JVinegar and its preparation1/08
C12LPitching or depitching machinesall groups
C12MApparatus for enzymology or microbiologyall groups
C12NMicroorganisms and enzymes00/00-1/06, 1/10, 1/12, 1/14, 1/16-1/18, 1/20, 1/34-1/36, 3/00-5/095, 7/00, 7/02-7/04, 7/08, 13/00
C12QEnzyme- and microorganism-based measuring or testing methods00/00-1/24, 1/64, 1/70-3/00
C12RIndexing scheme associated with subclasses C12C to C12Q or C12Sall groups
C12SEnzyme- and microorganism-based processes for liberation, separation or purification of compounds00/00, 3/00, 3/06, 3/10-3/12, 3/22-3/24, 7/00-13/00, 99/00
C13BSucrose production and apparatusall groups
C13CCutting mills; pulp pressesall groups
C13DProduction or purification of sugar juices00/00-1/14
C13FPreparation or processing of raw sugar, sugar or syrupall groups
C13GEvaporation apparatus; boiling pansall groups
C13HCutting machines for sugarall groups
C14BMechanical treatment or processing of leatherall groups
C21BManufacture or iron and steel00/00, 3/08-3/10, 5/06-13/14
C21CProcessing or pig iron00/00-1/00, 1/06-5/04, 5/28-5/35, 5/38-5/52, 5/56-7/00, 7/10
C21DMetallurgy of ferrous
metals00/00-1/55, 1/62-1/70, 1/767-1/84, 5/02, 7/00-11/00
C22BProduction and refining of ferrous and nonferrous metals1/26, 9/193
C22CAlloys47/12, 47/20
C23CCoating and surface treatment of metallic materials00/00, 1/02-1/10, 2/14-4/02, 4/12-7/00, 13/00-13/12, 14/50-14/52, 14/56, 16/50-16/517, 17/00-17/02
C23DEnamelling or vitreous layer application to metals00/00, 9/00-9/10, 13/00-17/00
C23FSurface treatment or corrosion and incrustation inhibition of metallic materials1/08, 13/18-13/22
C23GChemical cleaning or degreasing of metallic materials3/00-3/04
C25BElectrolytic or electrophoretic processes for production of compounds or nonmetals00/00, 9/00-9/05, 9/07, 9/09, 9/13, 9/15, 9/17-9/77, 15/00-15/06
C25CElectrolytic production, recovery or refining of metals3/08-3/10, 3/14-3/16, 3/20-3/22, 7/00-7/06
C25DElectrolytic and electrophoretic processes for production of coatings and electroforming00/00-1/10, 2/00, 7/00-7/12, 13/12-13/16, 13/22, 17/00-17/28, 21/00-21/10, 21/12
C25FElectrolytic removal of materials from objects7/00-7/02
C30BCrystal growth13/14-13/32, 15/06-15/36, 19/06-21/06, 23/04-23/06, 25/08-27/02, 29/60-30/08, 31/10-35/00
C99ZSubject matter not otherwise providedall groups
D: TEXTILES; PAPER
D01BMechanical treatment of natural fibersall groups
D01CChemical treatment of natural filamentary or fibrous material to obtain filaments or fibers for spinning1/04
D01DManufacture of artificial filamentsall groups
D01FChemical features in manufacture of artificial fibers and filaments9/133, 9/32
D01GPretreatment of fibersall groups
D01HSpinning or twistingall groups
D02GCrimping or curling of fibersall groups
D02HWarping, beaming or leasingall groups
D02JFinishing of filamentsall groups
D03CShedding mechanisms; pattern cardsall groups
D03DWoven fabrics; weaving methods; loomsall groups
D03JAuxiliary weaving apparatusall groups
D04BKnittingall groups
D04CBraiding; lace manufactureall groups
D04DTrimmings; ribbons; tapes; bandsall groups
D04GMaking nets by knittingall groups
D04HMaking of textile fabricsall groups
D05BSewingall groups
D05CEmbroidering; tuftingall groups
D06BTreatment of textiles by liquids, gases or vaporsall groups
D06CFinishing of textilesall groups
D06FLaundering; drying; ironing; pressingall groups
D06GMechanical or pressure cleaning of carpetsall groups
D06HMarking or severing of textilesall groups
D06JTextile pleating, kilting or gofferingall groups
D06MMiscellaneous textile and fiber treatment10/00-10/02, 11/84, 13/52-13/54, 15/70-15/72, 23/00-23/18
D06NCovering materials for walls, floors and roofs1/00, 3/16, 5/00-7/06
D06PDyeing or printing of textiles, leathers, furs or macromolecular materials5/20
D06QDecoration of textilesall groups
D07BRopes or cablesall groups
D21BFibrous raw materialsall groups
D21CCellulose production and pulping liquor regeneration1/10, 3/22-9/08, 9/18
D21DMaterial treatment prior to the papermaking machineall groups
D21FPapermaking machinesall groups
D21GCalendersall groups
D21HPulp compositions and impregnating or coating of paper11/08-11/18, 15/00-17/02, 19/00-19/08, 19/72-19/78, 19/84-21/12, 21/40-27/42
D21JFiberboardall groups
D99ZSubject matter not otherwise provided forall groups
E: FIXED CONSTRUCTIONS
E01BPermanent way3/28, 3/44-3/46, 7/26, 11/46-11/52, 31/12-31/20, 31/24
E01CRoad construction or surfaces00/00, 3/00-9/00, 9/04-11/12, 11/16-11/20, 11/24-15/00, 19/00-19/02, 19/08-19/12, 19/16, 21/00-21/02
E01DBridges19/08, 101/00-101/40
E01FRoad signs, markings, fences9/50-9/524, 9/576-9/582
E01HStreet cleaning3/00, 5/00, 8/00-8/04, 8/10, 10/00-15/00
E02BHydraulic engineering; foundations3/16, 15/04-15/10
E02DFoundations1/00-3/001, 3/054, 3/10-3/12, 5/04, 5/10, 5/18-5/20, 5/28-5/30, 5/46, 5/62-5/64, 15/00-15/06, 17/20-19/00, 19/06, 19/16-19/20, 23/14, 27/26, 27/32-27/52, 29/09, 29/16-31/14, 37/00
E03BWater distribution methods and networks00/00-3/02, 3/04-3/36, 7/00
E03CDomestic plumbing1/046, 1/10
E03DWater-closets or urinals1/01, 9/02, 9/10-9/12
E03FSewers; cesspools3/04, 5/14-5/18, 5/24
E04BGeneral building construction00/00-1/16, 1/20, 1/22-1/30, 1/62-1/98, 2/10, 2/20, 2/24-2/26, 2/34, 2/38-2/40, 2/48, 2/52-2/54, 2/92-2/94, 5/32, 5/44, 7/22, 103/00-103/06
E04CStructural elements and building materials00/00-2/296, 3/00, 3/04, 3/20, 3/26-3/293, 3/32-3/36, 3/40, 3/44-5/07, 5/18-5/20
E04DRoof coverings00/00-1/22, 3/00-3/35, 5/00-5/10, 7/00-11/02
E04FFinishing work on buildings10/02, 11/104-11/17, 13/00-13/02, 13/12-13/18, 15/00, 15/04-15/12
E04GScaffolding forms9/04-9/06, 21/00-21/02, 21/32, 23/02
E04HBuildings or like structures4/10, 7/00-7/30, 12/02, 12/08, 12/12
E05BLocks; keys; door fittings15/16, 19/26
E05GSafes or strong rooms1/12-1/14
E06BDoors; windows; shutters1/12, 1/24-1/26, 1/32, 1/58, 3/08, 3/12, 3/18-3/20, 3/54-3/56, 3/76-3/78, 3/86, 5/06-5/08, 5/12-5/18, 7/22-7/232
E21BEarth drilling; recovery of oil, gas, water, soluble materials or mineral slurries from wells00/00, 10/22, 10/24-10/25, 21/00-21/01, 21/06-21/08, 21/14-21/16, 25/08, 29/02, 33/00-33/02, 33/10-33/12, 33/13, 33/138-33/14, 35/00, 37/00, 37/06-37/08, 41/00, 43/00, 43/1185, 43/12-43/295, 43/32-43/40, 47/0005, 47/047-47/053, 47/11, 49/00, 49/08-49/10
E21CMining or quarrying35/22, 37/00, 37/06, 37/12-37/20, 37/26, 41/00-41/32, 50/00, 51/00
E21DShafts; tunnels; galleries1/10, 1/16, 5/00-5/012, 5/04-5/06, 5/11, 11/00, 11/04, 11/38
E21FMine safety devices00/00, 5/00-7/00, 17/00
E99ZSubject matter not otherwise coveredall groups
F: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01BPositive-displacement machines or engines31/02, 31/08-31/10, 31/16
F01CRotary-piston or oscillating-piston machines or engines19/00-19/12, 21/04-21/06
F01DNon-positive displacement machines or engines5/28, 11/00-11/12, 17/00-17/02, 17/08, 21/10, 21/14, 25/02, 25/08, 25/12, 25/22
F01KSteam engine plants5/00-5/02, 17/00-19/00, 25/00-27/02
F01LCyclically operating valves for machines3/02-3/04, 3/12-3/18, 7/16
F01MLubricating of machines or engines00/00, 3/00-9/04, 9/08-9/12, 11/08-11/10
F01NGas-flow silencers or exhaust apparatus for machines or engines00/00, 1/04, 1/10, 1/24-3/28, 5/00-5/02, 7/00, 7/14-7/16, 9/00-13/20, 99/00
F01PCooling of machines or engines00/00-1/00, 3/00, 3/22, 7/14, 9/00-9/02, 9/06, 11/06
F02BInternal-combustion piston engines1/06, 1/10, 1/14, 3/04, 3/08, 3/12, 5/02, 7/04, 7/08, 9/04, 13/10, 27/00-27/06, 39/14, 43/02-43/04, 43/08-45/02, 45/06-47/10, 51/00-53/02, 53/12, 55/00, 57/00, 59/00, 69/00-69/04, 75/08-75/12, 77/00-77/04, 77/11-77/13
F02CGas-turbine plants; jet-propulsion plants1/00-1/04, 1/06-3/00, 3/20-3/30, 3/34-5/00, 5/06, 5/10, 6/04-6/06, 6/10, 7/12-7/141, 7/16-7/18, 7/24-7/25, 7/264, 7/30, 9/40
F02DControlling combustion engines00/00, 19/00-21/06, 33/00-35/02
F02FCylinder, pistons or casings for combustion engines1/12, 3/16-3/18, 3/22
F02KJet-propulsion plants9/00-9/22, 9/26, 9/42, 9/70-9/72
F02MFuel supply of combustion engines7/16-7/17, 17/40, 25/00-27/08, 37/24-37/54, 99/00
F02NStarting of combustion engines and aids19/00-19/10, 99/00
F02PIgnition23/00-23/04
F03DWind motors9/11, 9/14, 9/17-9/19
F03GSpring, weight or inertia motors1/02-1/04, 4/00-4/06, 6/00-7/10
F03HProducing a reactive propulsive thrustall groups
F04BPumps; positive displacement machines for liquids15/00-15/08, 37/00-37/14, 39/02-39/04, 53/18
F04CRotary-piston or oscillating-piston machines and pumps25/02, 27/02, 29/02
F04DNon-positive displacement pumps7/00-7/08, 19/04, 29/02, 29/06-29/08
F04FPumping of fluid by direct contact of another fluid or by inertia1/14-1/16, 5/36-5/40, 9/00-9/02, 9/06
F15BSystems acting by means of fluids21/04-21/06
F15CFluid circuit elements for computing or control1/06
F15DFluid dynamics1/00-1/02
F16BDevices for fastening or securing2/22-2/26, 33/06
F16CShafts; bearings; rotary bodies1/24, 3/14, 27/06, 33/00-33/24, 33/44, 33/56, 33/62-33/78
F16DClutches; brakes; couplings for transmitting rotation3/19, 3/56-3/58, 3/66-3/68, 3/74, 3/77, 3/79, 13/74, 69/00-69/04
F16FSprings; shock absorbers1/02, 1/36, 1/366, 1/37, 3/02, 3/08-3/093, 15/06, 15/08, 15/121, 15/124, 15/133, 15/136, 15/305
F16GBelts, cables or ropes1/04-1/16, 5/04-5/14, 9/04
F16HGearing15/01, 41/32, 55/06, 55/48, 57/032, 59/72, 61/50
F16JPistons; cylinders; pressure vessels1/01-1/02, 9/26-9/28, 15/00-15/16, 15/20, 15/28-15/30, 15/328-15/3292, 15/38-15/40, 15/44-15/453, 15/54-15/56
F16KValves; taps; cocks1/32, 1/44, 3/30, 3/36, 5/08, 5/22, 17/00, 25/00, 25/04-27/06, 27/08-27/12, 99/00
F16LPipes; general means for thermal insulation9/00, 9/02-9/16, 9/21, 11/00-11/20, 11/24-11/26, 13/02, 13/08-13/12, 17/067-17/08, 23/026, 23/032, 23/16-23/24, 26/032, 27/06-27/067, 33/34, 47/00-47/03, 47/20-47/24, 53/00-53/75, 55/164-55/1645, 55/175, 58/00-59/02, 101/00, 101/10-101/18
F16NLubricating00/00, 15/00-17/06, 35/00, 39/00-99/00
F17CVessels for storing or containing compressed, liquified or solidified gases00/00-13/02, 13/10-13/12
F17DPipelines and systems1/00-1/05, 1/08-3/18
F21HIncandescent mantlesall groups
F21KLight sources00/00-5/12, 5/18, 7/00, 9/00, 9/60-99/00
F21VFeatures or details of lighting devices00/00, 1/14-3/00, 3/04-3/12, 5/10, 7/22-9/45, 15/01, 15/06, 29/00, 29/15, 29/51-29/56, 29/58-29/60, 29/70, 29/85-29/89, 31/04, 37/00, 99/00
F21YLight source form, kind or color115/00-115/30
F22BSteam generation; steam boilers00/00-1/06, 1/16-1/22, 1/30-3/08, 37/04, 37/48
F22GSuperheating of steam1/12-1/14
F23BSolid-fuel combustion apparatus and methods00/00, 10/00-10/02, 30/00-30/02, 40/00, 50/00, 60/00, 70/00-80/02, 90/00-99/00
F23CFluent-fuel combustion apparatus00/00-1/12, 9/00-101/00
F23DBurners00/00-1/00, 3/00, 5/00, 7/00-11/00, 14/00, 14/18, 14/80, 17/00, 21/00, 99/00
F23GWaste incineration00/00, 5/00-5/027, 5/12-5/18, 5/30, 5/48, 7/00-7/14
F23JRemoval or treatment of combustion products or residues00/00-1/00, 1/08-3/00, 3/04-9/00, 13/02, 15/00-15/04, 99/00
F23KFuel feeding to combustion apparatus1/00-1/02, 5/08-5/12
F23MConstructional details of combustion chambers5/00
F23NRegulation or control of combustion00/00, 5/00-5/14, 5/24-5/26
F23QIgnition00/00, 2/30, 2/44-2/48, 11/00-13/00
F23RGeneration of high pressure or high velocity combustion products3/40
F24DDomestic- or space-heating systems101/00, 101/30-101/60, 103/00-103/17
F24FAir conditioning1/0071-1/0087, 1/0328-1/037, 3/12, 3/16-5/00, 7/003, 8/00-8/99, 110/50-110/76
F24HFluid heaters9/40-9/45, 15/136-15/14, 15/288
F24JProduction or use of heat00/00-1/04, 2/28, 2/34, 2/42, 2/46-2/51, 3/00, 3/08
F24SSolar heat collectors and systems00/00, 10/00-20/00, 21/00, 40/00, 40/40, 40/46-40/50, 60/00-80/70
F24VHeat collection, production or useall groups
F25BRefrigeration plants, machines or systems00/00, 9/00-9/14, 15/00-17/02, 17/08-25/02, 30/00-30/04, 35/00-37/00, 41/10-41/22, 41/26-41/31, 41/32-41/39, 43/00-43/04,
47/00
F25DRefrigerators; cooling or freezing apparatus5/00-5/02
F25JLiquefaction, solidification or separation of gases by pressure and cold treatmentall groups
F26BDrying solid materialsall groups
F27BFurnaces, kilns, ovens or retorts00/00-1/00, 3/00, 5/00, 7/00, 14/00, 15/00, 17/00-17/02
F27DDetails of kilns, furnaces and retorts00/00-1/10, 1/16, 7/00-7/02, 7/06, 23/00, 27/00, 99/00
F28BSteam or vapor condensersall groups
F28CDirect-contact heat exchangersall groups
F28DOther heat exchangers00/00-13/00, 15/06-21/00
F28FDetails of heat-exchange or heat-transfer apparatus00/00-21/00, 21/04, 23/00-99/00
F28GSurface cleaning of heat exchangersall groups
F41AFeatures of small arms and ordnance1/00-1/04, 21/00-21/04, 21/20-21/22, 29/04, 99/00
F41HArmor00/00-1/08, 5/00-5/007, 5/02-5/08, 9/00-9/10, 11/12-11/138, 13/00
F41JTargets00/00-1/01, 5/24-5/26
F42BExplosive charges00/00-1/04, 3/10, 3/107-3/11, 3/13, 3/185, 3/192-3/195, 3/24, 3/28-4/00, 4/30, 5/145-5/15, 5/16-5/18, 5/188-5/196, 5/26-5/28, 5/295-5/313, 7/06, 8/16, 12/00, 12/36-12/50, 12/70-12/82, 14/04, 15/34, 19/20, 23/08, 23/14, 33/00-33/10, 33/14, 39/14-39/18, 99/00
F42CAmmunition fuses00/00, 9/08-9/12, 11/02, 15/30-15/31, 15/36-15/38, 19/08-19/09, 99/00
F42DBlasting1/24-1/28
F99ZSubject matter not otherwise provided forall groups
G: PHYSICS
G01BMeasurement of length, thickness or linear dimensions1/00
G01DMeasuring not adapted for a specific variable15/06, 15/10-15/16, 15/20, 15/34
G01FMeasuring volume, flow or level00/00-1/52, 1/56-1/58, 1/64-1/68, 1/708-3/00, 11/00, 13/00, 15/14, 17/00, 22/00
G01JMeasurement of properties of IR, visible or UV radiation00/00-1/02, 1/38, 1/42-1/54, 1/58, 3/00-3/51, 4/00
G01KMeasurement of temperature00/00, 1/08-1/12, 5/00-5/02, 5/12, 5/28, 5/32, 5/48, 5/64-5/66, 5/70, 7/00-7/08, 7/18, 7/22, 7/26, 7/32-7/36, 7/40, 11/00-11/20, 11/30-13/08, 13/12-13/25, 17/00-17/04, 19/00
G01LMeasuring force, stress, torque, or work7/00, 11/00, 21/00, 23/00
G01MTesting static or dynamic balance3/00, 3/20-3/22, 15/00-15/05, 15/10
G01NAnalyzing materials by determining their chemical and physical properties00/00-1/02, 1/10, 1/14-1/44, 3/28, 3/40, 3/56-3/60, 5/00-7/20, 9/00-9/06, 9/24-11/08, 11/14, 13/00-15/04, 15/06-19/04, 19/10-21/359, 21/39-21/552, 21/59-21/85, 21/88-21/89, 21/90-21/95, 21/958-22/00, 22/04-23/12, 23/20-25/58, 25/62-25/64, 25/70, 27/00-27/18, 27/22, 27/26-27/60, 27/62-27/78, 27/92-29/036, 30/00-30/96, 33/00-33/14, 33/18-33/48, 33/554-33/559, 33/569-33/571, 33/574-33/579, 35/00-37/00
G01QScanning-probe methods and apparatus; applicationsall groups
G01RMeasurement of electric and magnetic variables13/00, 13/12-13/16, 22/02-22/04, 33/00, 33/12-33/20, 33/28-33/30, 33/32, 33/44-33/50, 33/60-33/64
G01TMeasurement of nuclear or x-radiation00/00-1/10, 1/11-1/142, 1/16-1/163, 1/167-1/17, 1/178-1/205, 1/22-7/06
G01VGeophysics5/00-5/14, 9/00, 11/00
G02BOptical elements, systems or apparatus00/00-3/00, 5/00, 5/08, 5/18-6/036, 6/10-6/122, 6/13-6/27, 6/293, 21/00, 21/33, 26/00
G02FOptical devicesall groups
G03CPhotosensitive materials and processes in photography00/00, 1/025, 1/74, 1/765, 1/78-1/785, 1/805-1/81, 1/91, 1/95-5/18, 5/28-5/29, 5/60, 7/04-7/24, 7/46, 8/30, 8/34, 8/40-8/50, 9/00-11/24
G03FPhotomechanical production of textured or patterned surfaces00/00-7/00, 7/09-7/18, 7/26-7/42
G03GElectrography and electrophotography00/00-5/05, 5/082-5/087, 5/10-5/16, 13/00-21/00, 21/04-21/10
G03HHolographic processes or apparatus00/00-1/12, 1/18, 3/00-5/00
G04BMechanical clocks and watches19/12, 19/32, 31/004-31/016, 31/08, 37/02, 37/22-39/02
G04FTime-interval measuring5/14-5/16
G05BControl or regulating systemsall groups
G05DControl systems for non-electric variablesall groups
G05FSystems for regulating electric or magnetic variablesall groups
G05GControl devices or systems characterized by mechanical featuresall groups
G06FElectric digital data processing00/00, 17/00, 19/00-19/28
G06GAnalog computers7/48, 7/54-7/58, 7/75
G06KData recognition; record carriers19/02
G06NComputing arrangements based on specific models10/00, 10/40
G07DSorting, testing, or changing currency7/00-7/06, 7/12-7/15, 7/187
G08BSignaling or calling systems17/00, 17/08-17/11, 17/117-17/12, 21/00, 21/12-21/16
G09BEducational or demonstration devices23/00, 23/06, 23/12, 23/16-23/20, 23/24-23/28
G09FDisplaying; signs; labels9/305-9/35, 13/20-13/22
G09GControl of indicating devices3/08, 3/12-3/14, 3/18-3/19, 3/24, 3/28-3/2813, 3/30-3/38
G10DStringed musical instruments3/22, 9/08, 13/24
G10KSound-producing devices11/162-11/168
G11BInformation storage00/00, 3/68-3/70, 5/00-5/02, 5/10, 5/11-5/235, 5/255-5/41, 5/62-5/858, 7/00-7/013, 7/123-7/125, 7/127-7/128, 7/131, 7/1353-7/1376, 7/1384, 7/22-11/14, 11/18-13/08
G11CStatic stores11/00-11/06, 11/14-11/18, 11/21-11/28, 11/34-11/38, 11/40, 11/404, 11/42-11/46, 11/54-15/06, 17/00-17/16, 19/00-19/02, 19/08, 19/14-19/32, 19/36
G12BDetails of instruments21/00-21/08
G16BBioinformaticsall groups
G16CComputational chemistry and materials scienceall groups
G16HHealthcare informatics00/00-10/00, 10/40, 20/00-20/17, 20/90, 50/00-50/70
G16YInformation and communication technology for IOT10/25, 10/60, 10/90, 40/10-40/20
G16ZOther information and communication technologyall groups
G21BFusion reactorsall groups
G21CNuclear reactors00/00-3/40, 5/00-19/40, 21/00-23/00
G21DNuclear power plantall groups
G21FRadiation protection; decontaminationall groups
G21GConversion of chemical elements and radioactive sources4/00-7/00
G21HEnergy from radioactive sourcesall groups
G21JNuclear explosivesall groups
G21KTechniques for handling of particles or radiationall groups
G99ZSubject matter not otherwise provided forall groups
H: ELECTRICITY
H01BCables, conductors, insulators and dielectrics00/00, 5/00, 5/14-5/16, 7/17-7/22, 7/28-7/295, 9/00-9/02, 12/00-12/14, 13/00-13/016, 13/06-13/16, 13/22-13/26, 13/30-13/32, 15/00-17/00, 17/30-17/36, 17/50, 17/56-19/04
H01CResistors00/00, 7/00-7/105, 7/12-7/13, 7/12-7/22, 10/00-10/02, 11/00-13/00, 17/00-17/30
H01FMagnetic materials and inductors00/00, 1/03, 5/00, 6/00-7/02, 7/128, 10/06, 10/32, 27/00-27/02, 27/08-27/255, 27/32, 27/36, 41/00-41/079, 41/12-41/34
H01GCapacitors00/00, 2/10, 4/00-4/224, 4/33, 5/00-5/014, 5/20-5/28, 7/00-9/02, 9/04, 9/048-9/058, 9/07-9/08, 9/145-9/155, 9/20-13/00, 13/04-17/00
H01HElectric switches00/00-1/10, 1/66, 3/62, 9/00-9/04, 9/30-9/36, 11/00-11/06, 13/04-13/06, 13/10, 13/70-13/704, 13/78-13/785, 19/04-19/08, 21/04, 21/08, 21/12, 23/04-23/08, 29/00, 29/04-29/06, 33/04-33/10, 33/22, 33/57, 33/66, 33/664, 33/76, 33/82, 33/84, 33/867, 33/91, 33/92, 33/95-33/96, 33/985-33/99, 69/00, 69/02, 71/16-71/20, 85/00, 85/04-85/041, 85/05-85/08, 85/11, 85/143, 85/165-85/17, 85/18-85/20, 85/38-85/43, 87/00
H01JElectric discharge tubes or discharge lamps00/00-1/05, 1/12-1/14, 1/15-1/74, 1/78-1/90, 3/40, 5/04-5/10, 5/20-5/30, 7/00-7/12, 7/18-7/20, 7/28, 7/40, 9/00-9/04, 9/08, 9/12-9/14, 9/20-9/24, 9/28-9/30, 9/38-9/395,
9/42, 9/50-11/02, 11/10-11/54-13/08, 13/16, 13/22, 13/26-13/28, 15/00-15/02, 17/00-17/12, 17/18-17/26, 17/32, 17/38, 17/49-17/50, 19/00-19/06, 19/08, 19/12-19/20, 19/24-19/36, 19/40-19/44, 19/50, 19/54-19/58, 19/68-19/70, 21/00-21/02, 21/20, 23/02, 23/04-23/05, 27/00-27/08, 27/14-27/16, 27/20-29/32, 29/36-29/39, 29/44, 29/48, 29/84-29/86, 29/88, 29/94, 31/00, 31/08, 33/00, 35/00-35/08, 35/20, 37/00-37/06, 37/073-37/09, 37/244, 37/252, 37/26-37/295, 37/317-40/06, 40/10, 40/16-40/18, 41/00-43/04, 43/22, 45/00-47/12, 49/00-49/18, 49/26-49/30, 49/34-49/36, 49/40-61/12, 61/24-61/28, 61/35, 61/38-61/50, 61/54, 61/58-61/64, 61/70-61/76, 61/80, 61/98-99/00
H01KElectric incandescent lamps00/00-1/12, 1/18-1/20, 1/26-1/28, 1/32, 1/40, 1/50-1/56, 3/02, 3/22
H01LSemiconductor devicesall groups
H01MProcesses or means (e.g., batteries) for direct conversion of chemical energy into electrical energy00/00-4/12, 4/14-4/23, 4/62-4/84, 6/02, 6/08-6/12, 6/22, 6/30-8/04992, 8/24-16/00, 50/00-50/77
H01PWaveguides00/00-1/00, 1/08-1/11, 1/14-1/16, 1/165, 1/18-1/185, 1/20-1/207, 1/215-1/23, 3/00, 3/10-3/12, 3/14-3/18, 7/00, 7/10, 11/00
H01QAerials1/00, 1/38-1/40, 15/08, 19/09
H01RElectrically conductive connections00/00-4/04, 4/22, 4/58-4/64, 4/68-4/72, 13/00-13/03, 13/46-13/50, 13/52, 13/527-13/533, 13/6474, 13/6477, 13/658-13/6581, 13/6583-13/6585, 13/6598-13/6599, 13/7193, 39/18-39/26, 39/30, 43/06, 43/10-43/12
H01SLasers; devices using stimulated emission00/00-3/067, 3/08-3/0805, 3/09-3/10, 3/102-3/115, 3/13-3/134, 3/14-5/00, 5/02218-5/02235, 5/0232, 5/02345-5/0237, 5/028-5/068, 5/0687-5/50
H01TSpark gaps; corona devices00/00-1/02, 1/08-1/10, 1/18-1/24, 13/00-13/02, 13/06-13/08, 13/14, 13/20, 13/38-13/39, 13/41, 19/00, 23/00
H02BBoards, substations or switching arrangements1/26-1/28, 5/06, 7/01, 11/04, 13/055
H02KDynamo-electric machines1/02-1/04, 3/02, 3/30, 3/44, 5/02, 15/10-15/12, 44/08-44/10
H02NElectric machines not otherwise provided for3/00-6/00, 11/00
H02SGeneration of electric power via photovoltaic modules00/00-10/40, 20/26, 40/00-40/10, 40/20-40/22, 40/38-99/00
H03HImpedance networks; resonance9/00-9/02, 9/15-9/25, 9/46, 9/54-9/58, 9/62-9/64
H05BElectric heating; electric lighting00/00, 3/03-3/04, 3/08-3/14, 3/18, 7/00-7/09, 7/16-7/22, 31/00-31/02, 31/06-31/16, 33/00-33/04, 33/10-35/00
H05FStatic electricity1/00-1/02
H05GX-ray technique00/00-1/00, 2/00-7/22
H05HPlasma technique; production of charged particles, neutrons or atomic or molecular beams00/00-1/02, 1/08, 1/12, 1/24-1/26, 1/34, 1/54-6/00, 9/00-15/00
H05KPrinted circuits; manufacture of electric component assemblies00/00-3/18, 3/22-3/46, 9/00
H10BElectronic memory devicesall groups
H10KOrganic electric solid-state devicesall groups
H10NOther solid-state electric devicesall groups
H99ZSubject matter not otherwise provided forall groups