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The German Patent Classification (DPK) in English

Introduction to the DPK

Links to DPK classification schemes in English (pdf):

1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89  

You can search the text of the DPK by entering "dpk" and your search term (for example "dpk catalyst") in the field "search prv.se" at the top of this page!

The titles of the classes:

1. Dressing of ores, fuels and other minerals, refuse, slag and ash
2. Bakery
3. Apparel
4. Illumination by fuels, burners in general
5. Mining
6. Fermentation industry: alcohol, brandy, beer, wine, vinegar, yeast, other fermenting agents and products, enzymes
7. Manufacture and processing of wire, sheet metal and metal tubes, and the rolling of metal
8. Bleaching, washing, dyeing, cloth printing, wallpaper printing; finishing of textiles
9. Bristle products
10. Fuels
11. Bookbinding, albums, letter files, binders
12. Chemical processes and apparatus, not covered by special classes
13. Steam boilers for power generation, including accessories and steam lines
14. Steam engines, steam power plants; accumulators for live and exhaust steam, independent of the steam boiler
15. Printing, ruling machines, typewriters, stamps
16. Production of fertilisers, processing of animal carcasses, chemical earth treatment
17. Refrigeration and ice-making, ice-storage, heat exchange, mechanical liquefaction of not easily condensable gases and gaseous mixtures
18. Ferrous metallurgy
19. Railway, road and bridge construction
20. Railroad operation
21. Electrical engineering
22. Dyes, varnishes, lacquers, paints, adhesives
23. Fat and oil industry
24. Combustion apparatus
25. Braiding, lace-making, knitting, trimmings, tapestry work and net-making
26. Manufacture of gas by extraction from fuels; fuel gas production by wet processes; fuel gas production by carburetting; purification of distillation gas and acetylene
27. Blowers, air pumps, air compressors
28. Tanning, hide treatment, leather working
29. Textile fibres
30. Therapy
31. Furnaces, kilns, ovens, retorts; casting; powder metallurgy
32. Glass; mineral and slag wool
33. Portable and travelling articles
34. Household machines, implements and articles of all kinds, including furniture
35. Hoisting equipment
36. Heating, ventilation, hot water supply in buildings
37. Building structures and construction
38. Woodworking, mechanical and chemical
39. Working of plastics, elastomers, horn and the like, not otherwise provided for; production of plastics
40. Non-ferrous metallurgy, metal alloys, electrometallurgy, refinement of metals and metal alloys
41. Manufacture of hats, felting
42. Instruments, counting, computing, controlling
43. Registers and coin-controlled apparatus, postal sorting
44. Haberdashery, jewellery, smoking and tobacco equipment
45. Agriculture, forestry, animal husbandry, hunting, trapping, fishing
46. Internal-combustion engines; compressed-air, spring-actuated and other power engines
47. Machine elements, insulating bodies, brakes, lubricating devices, control devices for fluent materials, drives, compound elements of precision mechanics
48. Chemical surface treatment of metals
49. Mechanical metalworking
50. Milling and comminuting, including treatment prior to milling; after-treatment of grist by sifting and mixing; separation of mill dust from the used air
51. Musical instruments
52. Sewing and embroidery
53. Foods and delicacies, not provided for in special classes, including fodder
54. Paper and cardboard processing, except bookbinding, and products insofar as production is concerned; advertising
55. Manufacture of cellulose, paper and cardboard
56. Upholstery and saddlery
57. Photography, cinematography and sound motion pictures
58. Presses
59. Liquid pumps, liquid servomotors, other liquid lifting apparatus
60. Governors for power engines; servomotors for general use and their circuits
61. Life saving and fire extinguishing
62. Aeronautics
63. Vehicles travelling otherwise than on rails
64. Beverage dispensing
65. Ship building and nautical engineering
66. Slaughtering and meat processing
67. Grinding and polishing
68. Locksmiths' products
69. Cutting tools, including slashing and thrusting weapons, scissors
70. Writing and drawing implements
71. Footwear and manufacture thereof
72. Firearms, projectiles, entrenchment
73. Ropes
74. Signalling systems
75. Sculpture, painting, surface decoration
76. Spinning
77. Sports, games and amusements
78. Manufacture of igniter materials, explosives, blasting by means of explosives, pyrotechnic compositions, photo flash lamps, production of artificial smoke
79. Tobacco, cigars, cigarettes
80. Clay-ware, stoneware, lime, cement, plaster of Paris, asphalt, briquette presses
81. Conveying and packing
82. Drying, kilns, coffee roasters, centrifuges for general use
83. Horology
84. Hydraulic engineering, foundation laying, excavating
85. Mineral water, aerated water, water purification, water supply and sewerage
86. Weaving industry
87. Tools and implements, including pneumatic tools, of general application
88. Wind-power and water-power engines
89. Sugar and starch production
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