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) | 1 | 2 | 0 | 4 | 4 | 11 |
057 | Textiles: Spinning, Twisting, and Twining | 1 | 4 | 1 | 1 | 0 | 7 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 0 | 0 | 3 | 2 | 5 |
123 | Internal-Combustion Engines | 0 | 1 | 2 | 0 | 0 | 3 |
362 | Illumination | 0 | 1 | 1 | 0 | 1 | 3 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 0 | 0 | 0 | 3 | 3 |
019 | Textiles: Fiber Preparation | 0 | 1 | 0 | 1 | 0 | 2 |
198 | Conveyors: Power-Driven | 0 | 0 | 1 | 1 | 0 | 2 |
210 | Liquid Purification or Separation | 0 | 0 | 1 | 1 | 0 | 2 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 0 | 1 | 1 | 0 | 2 |
318 | Electricity: Motive Power Systems | 0 | 0 | 1 | 0 | 1 | 2 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 0 | 0 | 0 | 2 | 0 | 2 |
359 | Optics: Systems (Including Communication) and Elements | 0 | 0 | 1 | 1 | 0 | 2 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 0 | 0 | 0 | 0 | 1 | 1 |
015 | Brushing, Scrubbing, and General Cleaning | 0 | 0 | 1 | 0 | 0 | 1 |
049 | Movable or Removable Closures | 0 | 0 | 0 | 0 | 1 | 1 |
052 | Static Structures (e.g., Buildings) | 0 | 0 | 0 | 0 | 1 | 1 |
070 | Locks | 0 | 0 | 0 | 1 | 0 | 1 |
084 | Music | 0 | 0 | 0 | 0 | 1 | 1 |
137 | Fluid Handling | 0 | 0 | 0 | 1 | 0 | 1 |
139 | Textiles: Weaving | 0 | 0 | 0 | 0 | 1 | 1 |
169 | Fire Extinguishers | 1 | 0 | 0 | 0 | 0 | 1 |
211 | Supports: Racks | 0 | 1 | 0 | 0 | 0 | 1 |
242 | Winding, Tensioning, or Guiding | 0 | 1 | 0 | 0 | 0 | 1 |
246 | Railway Switches and Signals | 0 | 1 | 0 | 0 | 0 | 1 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 0 | 0 | 0 | 0 | 1 | 1 |
271 | Sheet Feeding or Delivering | 0 | 0 | 0 | 1 | 0 | 1 |
280 | Land Vehicles | 1 | 0 | 0 | 0 | 0 | 1 |
307 | Electrical Transmission or Interconnection Systems | 0 | 0 | 0 | 0 | 1 | 1 |
313 | Electric Lamp and Discharge Devices | 0 | 0 | 1 | 0 | 0 | 1 |
323 | Electricity: Power Supply or Regulation Systems | 0 | 0 | 0 | 1 | 0 | 1 |
356 | Optics: Measuring and Testing | 0 | 1 | 0 | 0 | 0 | 1 |
363 | Electric Power Conversion Systems | 0 | 0 | 0 | 1 | 0 | 1 |
408 | Cutting by Use of Rotating Axially Moving Tool | 0 | 0 | 0 | 1 | 0 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 0 | 0 | 1 | 1 |
417 | Pumps | 0 | 0 | 0 | 0 | 1 | 1 |
418 | Rotary Expansible Chamber Devices | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 1 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 0 | 0 | 0 | 1 | 0 | 1 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 0 | 0 | 0 | 1 | 0 | 1 |
532 | Organic Compounds (includes Classes 532-570) | 0 | 0 | 1 | 0 | 0 | 1 |
604 | Surgery (Medicators and Receptors) | 0 | 0 | 0 | 0 | 1 | 1 |
606 | Surgery (instruments) | 0 | 1 | 0 | 0 | 0 | 1 |
607 | Surgery: Light, Thermal, and Electrical Application | 1 | 0 | 0 | 0 | 0 | 1 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 0 | 0 | 0 | 1 | 0 | 1 |
ALL | ALL CLASSES | 5 | 14 | 13 | 24 | 23 | 79 |
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/