U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
435 | Chemistry: Molecular Biology and Microbiology | 2 | 8 | 10 | 5 | 5 | 30 |
428 | Stock Material or Miscellaneous Articles | 4 | 4 | 3 | 5 | 4 | 20 |
073 | Measuring and Testing | 3 | 1 | 4 | 3 | 2 | 13 |
206 | Special Receptacle or Package | 3 | 2 | 5 | 2 | 1 | 13 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 1 | 2 | 3 | 6 | 1 | 13 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 3 | 1 | 1 | 2 | 4 | 11 |
340 | Communications: Electrical | 1 | 3 | 0 | 4 | 2 | 10 |
024 | Buckles, Buttons, Clasps, Etc. | 0 | 2 | 4 | 1 | 2 | 9 |
043 | Fishing, Trapping, and Vermin Destroying | 0 | 1 | 2 | 4 | 2 | 9 |
210 | Liquid Purification or Separation | 2 | 2 | 2 | 1 | 2 | 9 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 4 | 1 | 1 | 2 | 1 | 9 |
436 | Chemistry: Analytical and Immunological Testing | 0 | 3 | 1 | 3 | 2 | 9 |
473 | Games Using Tangible Projectile | 2 | 1 | 3 | 1 | 2 | 9 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 1 | 3 | 1 | 3 | 0 | 8 |
052 | Static Structures (e.g., Buildings) | 1 | 1 | 2 | 1 | 2 | 7 |
114 | Ships | 1 | 3 | 2 | 0 | 1 | 7 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 2 | 2 | 0 | 0 | 3 | 7 |
361 | Electricity: Electrical Systems and Devices | 4 | 2 | 1 | 0 | 0 | 7 |
414 | Material or Article Handling | 0 | 1 | 0 | 3 | 3 | 7 |
060 | Power Plants | 0 | 1 | 3 | 1 | 1 | 6 |
101 | Printing | 0 | 0 | 0 | 5 | 1 | 6 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 1 | 2 | 1 | 2 | 6 |
280 | Land Vehicles | 1 | 1 | 2 | 1 | 1 | 6 |
343 | Communications: Radio Wave Antennas | 2 | 0 | 0 | 1 | 3 | 6 |
370 | Multiplex Communications | 2 | 0 | 0 | 3 | 1 | 6 |
426 | Food or Edible Material: Processes, Compositions, and Products | 2 | 1 | 1 | 1 | 1 | 6 |
042 | Firearms | 0 | 2 | 2 | 0 | 1 | 5 |
119 | Animal Husbandry | 1 | 1 | 1 | 0 | 2 | 5 |
137 | Fluid Handling | 0 | 0 | 1 | 2 | 2 | 5 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 2 | 0 | 1 | 0 | 2 | 5 |
204 | Chemistry: Electrical and Wave Energy | 0 | 0 | 1 | 1 | 3 | 5 |
242 | Winding, Tensioning, or Guiding | 2 | 1 | 1 | 0 | 1 | 5 |
294 | Handling: Hand and Hoist-Line Implements | 0 | 0 | 1 | 2 | 2 | 5 |
297 | Chairs and Seats | 1 | 0 | 1 | 0 | 3 | 5 |
036 | Boots, Shoes, and Leggings | 2 | 0 | 0 | 1 | 1 | 4 |
072 | Metal Deforming | 1 | 1 | 1 | 1 | 0 | 4 |
074 | Machine Element or Mechanism | 1 | 1 | 1 | 0 | 1 | 4 |
084 | Music | 0 | 0 | 1 | 1 | 2 | 4 |
219 | Electric Heating | 0 | 1 | 1 | 2 | 0 | 4 |
226 | Advancing Material of Indeterminate Length | 0 | 0 | 0 | 3 | 1 | 4 |
273 | Amusement Devices: Games | 1 | 0 | 0 | 1 | 2 | 4 |
324 | Electricity: Measuring and Testing | 1 | 0 | 0 | 3 | 0 | 4 |
356 | Optics: Measuring and Testing | 1 | 0 | 2 | 0 | 1 | 4 |
379 | Telephonic Communications | 3 | 1 | 0 | 0 | 0 | 4 |
381 | Electrical Audio Signal Processing Systems and Devices | 1 | 0 | 2 | 0 | 1 | 4 |
451 | Abrading | 1 | 0 | 1 | 1 | 1 | 4 |
482 | Exercise Devices | 0 | 0 | 2 | 0 | 2 | 4 |
604 | Surgery (Medicators and Receptors) | 0 | 1 | 1 | 1 | 1 | 4 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 0 | 2 | 2 | 0 | 4 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 0 | 1 | 2 | 1 | 4 |
714 | Error Detection/Correction and Fault Detection/Recovery | 1 | 2 | 0 | 1 | 0 | 4 |
005 | Beds | 0 | 2 | 1 | 0 | 0 | 3 |
012 | Boot and Shoe Making | 2 | 0 | 0 | 1 | 0 | 3 |
015 | Brushing, Scrubbing, and General Cleaning | 3 | 0 | 0 | 0 | 0 | 3 |
029 | Metal Working | 1 | 0 | 1 | 0 | 1 | 3 |
030 | Cutlery | 1 | 0 | 0 | 0 | 2 | 3 |
033 | Geometrical Instruments | 1 | 0 | 1 | 1 | 0 | 3 |
047 | Plant Husbandry | 2 | 0 | 0 | 0 | 1 | 3 |
081 | Tools | 1 | 0 | 0 | 1 | 1 | 3 |
095 | Gas Separation: Processes | 1 | 1 | 0 | 1 | 0 | 3 |
123 | Internal-Combustion Engines | 1 | 1 | 1 | 0 | 0 | 3 |
138 | Pipes and Tubular Conduits | 0 | 1 | 2 | 0 | 0 | 3 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 0 | 0 | 2 | 1 | 0 | 3 |
209 | Classifying, Separating, and Assorting Solids | 1 | 0 | 1 | 1 | 0 | 3 |
312 | Supports: Cabinet Structure | 0 | 0 | 2 | 1 | 0 | 3 |
417 | Pumps | 0 | 0 | 2 | 0 | 1 | 3 |
427 | Coating Processes | 1 | 1 | 0 | 0 | 1 | 3 |
438 | Semiconductor Device Manufacturing: Process | 0 | 0 | 0 | 1 | 2 | 3 |
439 | Electrical Connectors | 0 | 0 | 1 | 1 | 1 | 3 |
440 | Marine Propulsion | 0 | 0 | 2 | 1 | 0 | 3 |
441 | Buoys, Rafts, and Aquatic Devices | 0 | 1 | 0 | 1 | 1 | 3 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 0 | 1 | 1 | 0 | 1 | 3 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 1 | 0 | 1 | 1 | 0 | 3 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 1 | 1 | 0 | 1 | 0 | 3 |
002 | Apparel | 1 | 0 | 1 | 0 | 0 | 2 |
028 | Textiles: Manufacturing | 0 | 0 | 1 | 1 | 0 | 2 |
040 | Card, Picture, or Sign Exhibiting | 1 | 0 | 1 | 0 | 0 | 2 |
062 | Refrigeration | 0 | 1 | 0 | 0 | 1 | 2 |
089 | Ordnance | 0 | 1 | 1 | 0 | 0 | 2 |
099 | Foods and Beverages: Apparatus | 0 | 0 | 1 | 1 | 0 | 2 |
108 | Horizontally Supported Planar Surfaces | 0 | 1 | 1 | 0 | 0 | 2 |
118 | Coating Apparatus | 0 | 0 | 1 | 1 | 0 | 2 |
162 | Paper Making and Fiber Liberation | 0 | 1 | 0 | 0 | 1 | 2 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 1 | 1 | 0 | 0 | 0 | 2 |
198 | Conveyors: Power-Driven | 1 | 0 | 0 | 0 | 1 | 2 |
222 | Dispensing (apparatus and process) | 0 | 0 | 1 | 0 | 1 | 2 |
224 | Package and Article Carriers | 0 | 0 | 1 | 0 | 1 | 2 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 0 | 0 | 0 | 1 | 1 | 2 |
237 | Heating Systems | 0 | 0 | 1 | 0 | 1 | 2 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 1 | 0 | 1 | 0 | 2 |
241 | Solid Material Comminution or Disintegration | 1 | 0 | 0 | 0 | 1 | 2 |
244 | Aeronautics | 0 | 1 | 0 | 1 | 0 | 2 |
250 | Radiant Energy | 0 | 1 | 0 | 0 | 1 | 2 |
277 | Seal for a Joint or Juncture | 0 | 1 | 0 | 1 | 0 | 2 |
285 | Pipe Joints or Couplings | 0 | 1 | 0 | 0 | 1 | 2 |
310 | Electrical Generator or Motor Structure | 0 | 1 | 0 | 0 | 1 | 2 |
326 | Electronic Digital Logic Circuitry | 0 | 0 | 0 | 0 | 2 | 2 |
330 | Amplifiers | 1 | 0 | 0 | 0 | 1 | 2 |
348 | Television | 0 | 0 | 0 | 0 | 2 | 2 |
359 | Optics: Systems (Including Communication) and Elements | 0 | 2 | 0 | 0 | 0 | 2 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 0 | 2 | 0 | 0 | 0 | 2 |
385 | Optical Waveguides | 0 | 0 | 1 | 1 | 0 | 2 |
405 | Hydraulic and Earth Engineering | 1 | 0 | 0 | 0 | 1 | 2 |
434 | Education and Demonstration | 0 | 0 | 0 | 1 | 1 | 2 |
455 | Telecommunications | 0 | 0 | 2 | 0 | 0 | 2 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 0 | 0 | 0 | 0 | 2 | 2 |
606 | Surgery (instruments) | 1 | 0 | 1 | 0 | 0 | 2 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 0 | 1 | 0 | 0 | 1 | 2 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 0 | 0 | 1 | 0 | 1 |
007 | Compound Hand Tools | 1 | 0 | 0 | 0 | 0 | 1 |
026 | Textiles: Cloth Finishing | 0 | 0 | 1 | 0 | 0 | 1 |
037 | Excavating | 1 | 0 | 0 | 0 | 0 | 1 |
044 | Fuel and Related Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
053 | Package Making | 1 | 0 | 0 | 0 | 0 | 1 |
056 | Harvesters | 1 | 0 | 0 | 0 | 0 | 1 |
063 | Jewelry | 0 | 0 | 1 | 0 | 0 | 1 |
100 | Presses | 0 | 0 | 0 | 1 | 0 | 1 |
106 | Compositions: Coating or Plastic | 0 | 0 | 0 | 1 | 0 | 1 |
128 | Surgery (includes Class 600) | 0 | 1 | 0 | 0 | 0 | 1 |
132 | Toilet | 0 | 0 | 0 | 0 | 1 | 1 |
144 | Woodworking | 0 | 0 | 1 | 0 | 0 | 1 |
152 | Resilient Tires and Wheels | 0 | 0 | 0 | 0 | 1 | 1 |
160 | Flexible or Portable Closure, Partition, or Panel | 0 | 0 | 1 | 0 | 0 | 1 |
169 | Fire Extinguishers | 0 | 0 | 0 | 0 | 1 | 1 |
173 | Tool Driving or Impacting | 0 | 0 | 1 | 0 | 0 | 1 |
174 | Electricity: Conductors and Insulators | 1 | 0 | 0 | 0 | 0 | 1 |
180 | Motor Vehicles | 0 | 0 | 0 | 0 | 1 | 1 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 0 | 0 | 1 | 0 | 1 |
192 | Clutches and Power-Stop Control | 0 | 0 | 0 | 1 | 0 | 1 |
211 | Supports: Racks | 0 | 0 | 0 | 0 | 1 | 1 |
220 | Receptacles | 0 | 0 | 1 | 0 | 0 | 1 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 0 | 1 | 0 | 1 |
238 | Railways: Surface Track | 0 | 0 | 0 | 0 | 1 | 1 |
251 | Valves and Valve Actuation | 0 | 1 | 0 | 0 | 0 | 1 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 0 | 0 | 0 | 0 | 1 | 1 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 1 | 0 | 0 | 0 | 0 | 1 |
269 | Work Holders | 1 | 0 | 0 | 0 | 0 | 1 |
271 | Sheet Feeding or Delivering | 0 | 0 | 1 | 0 | 0 | 1 |
279 | Chucks or Sockets | 1 | 0 | 0 | 0 | 0 | 1 |
293 | Vehicle Fenders | 0 | 0 | 1 | 0 | 0 | 1 |
296 | Land Vehicles: Bodies and Tops | 1 | 0 | 0 | 0 | 0 | 1 |
301 | Land Vehicles: Wheels and Axles | 0 | 0 | 1 | 0 | 0 | 1 |
305 | Wheel Substitutes for Land Vehicles | 1 | 0 | 0 | 0 | 0 | 1 |
307 | Electrical Transmission or Interconnection Systems | 0 | 0 | 1 | 0 | 0 | 1 |
315 | Electric Lamp and Discharge Devices: Systems | 0 | 0 | 0 | 1 | 0 | 1 |
322 | Electricity: Single Generator Systems | 0 | 0 | 0 | 0 | 1 | 1 |
331 | Oscillators | 0 | 0 | 0 | 1 | 0 | 1 |
333 | Wave Transmission Lines and Networks | 0 | 0 | 0 | 0 | 1 | 1 |
341 | Coded Data Generation or Conversion | 1 | 0 | 0 | 0 | 0 | 1 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 0 | 0 | 0 | 0 | 1 | 1 |
358 | Facsimile and Static Presentation Processing | 0 | 0 | 0 | 0 | 1 | 1 |
360 | Dynamic Magnetic Information Storage or Retrieval | 0 | 1 | 0 | 0 | 0 | 1 |
362 | Illumination | 0 | 1 | 0 | 0 | 0 | 1 |
365 | Static Information Storage and Retrieval | 0 | 0 | 0 | 1 | 0 | 1 |
366 | Agitating (e.g., of articles and materials) | 0 | 0 | 0 | 0 | 1 | 1 |
382 | Image Analysis | 0 | 0 | 0 | 1 | 0 | 1 |
400 | Typewriting Machines | 0 | 1 | 0 | 0 | 0 | 1 |
401 | Coating Implements with Material Supply | 0 | 0 | 0 | 1 | 0 | 1 |
404 | Road Structure, Process, or Apparatus | 0 | 1 | 0 | 0 | 0 | 1 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 0 | 0 | 1 | 0 | 0 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 1 | 0 | 0 | 1 |
418 | Rotary Expansible Chamber Devices | 0 | 1 | 0 | 0 | 0 | 1 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 0 | 0 | 0 | 1 | 1 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 0 | 0 | 0 | 1 | 0 | 1 |
494 | Imperforate Bowl: Centrifugal Separators | 1 | 0 | 0 | 0 | 0 | 1 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 0 | 1 | 0 | 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 | 1 | 0 | 0 | 0 | 1 |
532 | Organic Compounds (includes Classes 532-570) | 0 | 1 | 0 | 0 | 0 | 1 |
588 | Hazardous or Toxic Waste Destruction or Containment | 0 | 0 | 0 | 0 | 1 | 1 |
607 | Surgery: Light, Thermal, and Electrical Application | 0 | 0 | 0 | 0 | 1 | 1 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 1 | 0 | 0 | 0 | 0 | 1 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 1 | 0 | 1 |
725 | Interactive Video Distribution Systems | 0 | 0 | 1 | 0 | 0 | 1 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 0 | 1 | 0 | 1 |
ALL | ALL CLASSES | 98 | 93 | 122 | 121 | 127 | 561 |
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/