U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
210 | Liquid Purification or Separation | 0 | 0 | 1 | 3 | 1 | 5 |
194 | Check-Actuated Control Mechanisms | 1 | 1 | 1 | 0 | 1 | 4 |
427 | Coating Processes | 0 | 0 | 1 | 2 | 1 | 4 |
261 | Gas and Liquid Contact Apparatus | 2 | 0 | 0 | 1 | 0 | 3 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 0 | 0 | 3 | 0 | 0 | 3 |
037 | Excavating | 0 | 0 | 0 | 0 | 2 | 2 |
062 | Refrigeration | 0 | 0 | 0 | 1 | 1 | 2 |
110 | Furnaces | 0 | 1 | 0 | 1 | 0 | 2 |
137 | Fluid Handling | 0 | 0 | 0 | 0 | 2 | 2 |
148 | Metal Treatment | 1 | 1 | 0 | 0 | 0 | 2 |
209 | Classifying, Separating, and Assorting Solids | 1 | 0 | 0 | 0 | 1 | 2 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 0 | 2 | 0 | 0 | 2 |
271 | Sheet Feeding or Delivering | 0 | 0 | 0 | 0 | 2 | 2 |
341 | Coded Data Generation or Conversion | 1 | 1 | 0 | 0 | 0 | 2 |
348 | Television | 0 | 0 | 2 | 0 | 0 | 2 |
047 | Plant Husbandry | 1 | 0 | 0 | 0 | 0 | 1 |
060 | Power Plants | 0 | 0 | 1 | 0 | 0 | 1 |
065 | Glass Manufacturing | 0 | 0 | 0 | 0 | 1 | 1 |
071 | Chemistry: Fertilizers | 0 | 1 | 0 | 0 | 0 | 1 |
074 | Machine Element or Mechanism | 0 | 0 | 0 | 1 | 0 | 1 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 0 | 0 | 0 | 0 | 1 | 1 |
128 | Surgery (includes Class 600) | 0 | 0 | 0 | 0 | 1 | 1 |
164 | Metal Founding | 1 | 0 | 0 | 0 | 0 | 1 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 0 | 1 | 0 | 0 | 1 |
204 | Chemistry: Electrical and Wave Energy | 1 | 0 | 0 | 0 | 0 | 1 |
219 | Electric Heating | 0 | 0 | 0 | 1 | 0 | 1 |
228 | Metal Fusion Bonding | 0 | 0 | 0 | 1 | 0 | 1 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 0 | 1 | 0 | 1 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 0 | 0 | 1 | 0 | 1 |
250 | Radiant Energy | 0 | 0 | 0 | 0 | 1 | 1 |
252 | Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
283 | Printed Matter | 0 | 0 | 0 | 1 | 0 | 1 |
310 | Electrical Generator or Motor Structure | 1 | 0 | 0 | 0 | 0 | 1 |
313 | Electric Lamp and Discharge Devices | 0 | 1 | 0 | 0 | 0 | 1 |
324 | Electricity: Measuring and Testing | 0 | 0 | 0 | 0 | 1 | 1 |
331 | Oscillators | 0 | 0 | 1 | 0 | 0 | 1 |
352 | Optics: Motion Pictures | 0 | 0 | 0 | 1 | 0 | 1 |
356 | Optics: Measuring and Testing | 0 | 0 | 0 | 1 | 0 | 1 |
373 | Industrial Electric Heating Furnaces | 0 | 0 | 0 | 1 | 0 | 1 |
385 | Optical Waveguides | 1 | 0 | 0 | 0 | 0 | 1 |
418 | Rotary Expansible Chamber Devices | 0 | 0 | 0 | 1 | 0 | 1 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 0 | 0 | 0 | 0 | 1 | 1 |
428 | Stock Material or Miscellaneous Articles | 0 | 0 | 0 | 1 | 0 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 1 | 0 | 0 | 0 | 0 | 1 |
431 | Combustion | 0 | 1 | 0 | 0 | 0 | 1 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 0 | 1 | 0 | 0 | 1 |
436 | Chemistry: Analytical and Immunological Testing | 0 | 0 | 1 | 0 | 0 | 1 |
440 | Marine Propulsion | 0 | 0 | 1 | 0 | 0 | 1 |
451 | Abrading | 0 | 1 | 0 | 0 | 0 | 1 |
460 | Crop Threshing or Separating | 0 | 0 | 1 | 0 | 0 | 1 |
475 | Planetary Gear Transmission Systems or Components | 1 | 0 | 0 | 0 | 0 | 1 |
607 | Surgery: Light, Thermal, and Electrical Application | 1 | 0 | 0 | 0 | 0 | 1 |
713 | Support (Electrical Computers and Digital Processing Systems) | 1 | 0 | 0 | 0 | 0 | 1 |
ALL | ALL CLASSES | 15 | 8 | 17 | 20 | 17 | 77 |
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/