| Table 6-4 |
| Top 15 most emphasized U.S. patent
classes for corporations from United States, Japan, and Germany: 2001 |
| |
 |
| Rank |
|
United States |
Japan |
Germany |
|
| 1 |
|
Business practice, data processing |
Photocopying |
Clutches and power-stop control |
| 2 |
|
Surgery: light, thermal, and electrical
applications |
Information storage and retrieval |
Rotary shafts |
| 3 |
|
Computers and digital processing systems |
Television signal processing |
Brake systems |
| 4 |
|
Surgery instruments |
Photography |
Printing |
| 5 |
|
Data processing, file management |
Electrophotography |
Winding, tensioning, or guiding
devices
|
| 6 |
|
Digital processing systems |
Liquid crystal cells |
Machine element or mechanism |
| 7 |
|
Computer memory |
Facsimile |
Land vehicles, bodies and tops |
| 8 |
|
Data processing software |
Incremental printing of symbolic information |
Magnetically operated switches |
| 9 |
|
Surgery (medicators and receptors) |
Electric lamp and discharge devices |
Metal forming |
| 10 |
|
Prosthesis |
Typewriting machines |
Brakes |
| 11 |
|
Wells |
Electrical generators |
Land vehicles |
| 12 |
|
I/O digital processing systems |
Radiation imagery chemistry |
Joints and connections |
| 13 |
|
Boring or earth penetrating apparatus |
Ceramic compositions |
Internal combustion engines |
| 14 |
|
Multicellular living organisms |
Wave transmission lines and networks |
Fluid sprayers |
| 15 |
|
Digital processing, support |
Optics systems, including communication |
Electrical transmission systems |
|
|
| |
I/O input/output
NOTES: Rank is based on patenting activity of nongovernment U.S. or
foreign organizations, which are primarily corporations. Patenting
by individuals and governments is excluded.
SOURCE: U.S. Patent and Trademark Office, Information Products Division,
Technology Assessment and Forecast Branch, 2002. |
| |
| Science & Engineering Indicators
— 2004 |
|
Source Links:
Source data 
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