| Accounting | 63 |
Forestry | 23 |
Packaging | 55 |
| Accumulators | 2 |
Gambling | 1 |
Patents | 68 |
| Acridology | 1 |
Gear train | 6 |
Pest control | 10 |
| Agriculture | 187 |
General | 677 |
Pharmacy and pharmacology | 29 |
| American usage, not spelling | 2 |
Genetics | 8 |
Phonology | 39 |
| Analytical chemistry | 11 |
Geography | 5 |
Photography | 1 |
| Animal husbandry | 5 |
Government, administration and public services | 6 |
Physical sciences | 5 |
| Antennas and waveguides | 6 |
Grammar | 1 |
Planning | 3 |
| Art | 2 |
Handball | 1 |
Politics | 43 |
| Astronomy | 58 |
Health care | 129 |
Polymers | 1 |
| Automated equipment | 156 |
High energy physics | 28 |
Power electronics | 6 |
| Automatic control | 1 |
Hobbies and pastimes | 3 |
Power lines | 5 |
| Aviation | 74 |
Horticulture | 3 |
Power system protection | 10 |
| Banking | 34 |
Human resources | 3 |
Private international law | 6 |
| Bioenergy | 5 |
Human rights activism | 8 |
Procedural law | 14 |
| Biology | 8 |
Ichthyology | 4 |
Pulp and paper industry | 1 |
| Biotechnology | 15 |
Immigration and citizenship | 21 |
Radiation | 20 |
| Botany | 1 |
Industry | 92 |
Radio | 3 |
| Business | 5 |
Information technology | 207 |
Radiobiology | 1 |
| Cables and cable production | 4 |
Insurance | 82 |
Radiology | 1 |
| Chemical fibers | 4 |
International law | 2 |
Rail transport | 2 |
| Chemistry | 143 |
International Monetary Fund | 41 |
Reliability | 7 |
| Cinematography | 5 |
International trade | 41 |
Religion | 3 |
| Climatology | 1 |
Investment | 1 |
Remote sensing | 2 |
| Coal | 20 |
Isolation | 2 |
Research and development | 6 |
| Commerce | 69 |
Knitted goods | 1 |
Resins | 1 |
| Communications | 236 |
Labor law | 38 |
Risk Management | 1 |
| Computer numerical control | 9 |
Labor organization | 1 |
Scientific | 5 |
| Computers | 72 |
Laboratory equipment | 1 |
Security systems | 4 |
| Construction | 40 |
Law | 486 |
Semiconductors | 1 |
| Corporate governance | 22 |
Life sciences | 56 |
Social science | 77 |
| Criminal law | 10 |
Lighting other than cinema | 2 |
Sociolinguistics | 1 |
| Cultural studies | 36 |
Linguistics | 30 |
Sociology | 5 |
| Customs | 5 |
Loading equipment | 8 |
Soil science | 1 |
| Demography | 8 |
Mammals | 1 |
Statistics | 137 |
| Dyalysis | 3 |
Marketing | 41 |
Superconductivity | 4 |
| Earth sciences | 89 |
Materials science | 27 |
Swimming | 1 |
| Ecology | 1 |
Mathematics | 40 |
Syntax | 15 |
| Economics | 313 |
Measuring instruments | 4 |
Table tennis | 1 |
| Education | 27 |
Mechanic engineering | 86 |
Taxes | 35 |
| Electric machinery | 2 |
Medical | 176 |
Technology | 154 |
| Electric motors | 4 |
Medical appliances | 37 |
Telecommunications | 17 |
| Electric traction | 4 |
Metallurgy | 110 |
Telephony | 2 |
| Electrical engineering | 21 |
Microsoft | 20 |
Textile industry | 32 |
| Electricity generation | 2 |
Military | 11 |
Thermal Energy | 4 |
| Electronics | 249 |
Milk production | 12 |
Trade unions | 8 |
| Employment | 2 |
Mineral products | 8 |
Transformers | 3 |
| Energy industry | 41 |
Mining | 2 |
Transport | 305 |
| Entomology | 4 |
Municipal planning | 13 |
United Nations | 105 |
| Environment | 171 |
Name of organization | 38 |
Veterinary medicine | 3 |
| European Union | 8 |
Natural resourses and wildlife conservation | 41 |
Video recording | 5 |
| Finances | 447 |
Natural sciences | 57 |
Water resources | 16 |
| Fish farming pisciculture | 20 |
Nautical | 1 |
Welding | 1 |
| Fishery fishing industry | 8 |
Nuclear and fusion power | 1 |
Welfare & Social Security | 8 |
| Food industry | 28 |
Nuclear physics | 53 |
Wood processing | 3 |
| Food service and catering | 14 |
Obsolete / dated | 12 |
Work flow | 15 |
| Football | 2 |
Oil / petroleum | 1 |
Zoology | 1 |
