U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 2 | 1 | 3 | 0 | 2 | 8 |
532 | Organic Compounds (includes Classes 532-570) | 2 | 1 | 0 | 2 | 0 | 5 |
310 | Electrical Generator or Motor Structure | 0 | 0 | 3 | 0 | 1 | 4 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 0 | 3 | 1 | 0 | 4 |
241 | Solid Material Comminution or Disintegration | 0 | 0 | 1 | 1 | 1 | 3 |
101 | Printing | 0 | 0 | 1 | 0 | 1 | 2 |
139 | Textiles: Weaving | 1 | 0 | 1 | 0 | 0 | 2 |
210 | Liquid Purification or Separation | 0 | 0 | 0 | 1 | 1 | 2 |
307 | Electrical Transmission or Interconnection Systems | 1 | 0 | 1 | 0 | 0 | 2 |
324 | Electricity: Measuring and Testing | 0 | 0 | 0 | 0 | 2 | 2 |
340 | Communications: Electrical | 0 | 0 | 0 | 1 | 1 | 2 |
606 | Surgery (instruments) | 0 | 1 | 0 | 1 | 0 | 2 |
029 | Metal Working | 0 | 0 | 0 | 0 | 1 | 1 |
072 | Metal Deforming | 0 | 0 | 1 | 0 | 0 | 1 |
122 | Liquid Heaters and Vaporizers | 0 | 1 | 0 | 0 | 0 | 1 |
128 | Surgery (includes Class 600) | 0 | 0 | 1 | 0 | 0 | 1 |
137 | Fluid Handling | 0 | 0 | 1 | 0 | 0 | 1 |
144 | Woodworking | 0 | 0 | 0 | 0 | 1 | 1 |
150 | Purses, Wallets, and Protective Covers | 0 | 0 | 0 | 0 | 1 | 1 |
152 | Resilient Tires and Wheels | 0 | 1 | 0 | 0 | 0 | 1 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 0 | 0 | 1 | 0 | 1 |
219 | Electric Heating | 0 | 0 | 0 | 1 | 0 | 1 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 0 | 0 | 0 | 1 | 1 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 0 | 1 | 0 | 0 | 0 | 1 |
277 | Seal for a Joint or Juncture | 0 | 1 | 0 | 0 | 0 | 1 |
280 | Land Vehicles | 0 | 0 | 0 | 0 | 1 | 1 |
315 | Electric Lamp and Discharge Devices: Systems | 0 | 0 | 0 | 1 | 0 | 1 |
349 | Liquid Crystal Cells, Elements and Systems | 1 | 0 | 0 | 0 | 0 | 1 |
366 | Agitating (e.g., of articles and materials) | 0 | 0 | 0 | 0 | 1 | 1 |
375 | Pulse or Digital Communications | 1 | 0 | 0 | 0 | 0 | 1 |
428 | Stock Material or Miscellaneous Articles | 0 | 0 | 0 | 0 | 1 | 1 |
433 | Dentistry | 1 | 0 | 0 | 0 | 0 | 1 |
451 | Abrading | 1 | 0 | 0 | 0 | 0 | 1 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 0 | 0 | 1 | 0 | 0 | 1 |
604 | Surgery (Medicators and Receptors) | 0 | 0 | 1 | 0 | 0 | 1 |
ALL | ALL CLASSES | 10 | 7 | 18 | 10 | 16 | 61 |
U.S. Patent and Trademark Office
Information Products Division - TAF Branch
PK3- Suite 441
Washington, DC 20231 tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of TAF reports from : ftp.uspto.gov/pub/taf/