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 | 7 | 2 | 5 | 10 | 26 |
341 | Coded Data Generation or Conversion | 3 | 9 | 7 | 2 | 4 | 25 |
604 | Surgery (Medicators and Receptors) | 4 | 1 | 6 | 3 | 5 | 19 |
128 | Surgery (includes Class 600) | 4 | 4 | 2 | 3 | 1 | 14 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 2 | 5 | 3 | 0 | 1 | 11 |
439 | Electrical Connectors | 1 | 0 | 3 | 3 | 4 | 11 |
222 | Dispensing (apparatus and process) | 0 | 1 | 3 | 3 | 3 | 10 |
435 | Chemistry: Molecular Biology and Microbiology | 2 | 2 | 1 | 2 | 3 | 10 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 5 | 1 | 0 | 2 | 1 | 9 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 1 | 1 | 4 | 2 | 8 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 0 | 0 | 0 | 2 | 6 | 8 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 2 | 1 | 1 | 2 | 2 | 8 |
361 | Electricity: Electrical Systems and Devices | 2 | 2 | 1 | 1 | 1 | 7 |
052 | Static Structures (e.g., Buildings) | 1 | 0 | 2 | 3 | 0 | 6 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 1 | 1 | 1 | 2 | 1 | 6 |
370 | Multiplex Communications | 0 | 0 | 1 | 2 | 3 | 6 |
426 | Food or Edible Material: Processes, Compositions, and Products | 3 | 0 | 0 | 1 | 2 | 6 |
073 | Measuring and Testing | 1 | 1 | 0 | 3 | 0 | 5 |
452 | Butchering | 3 | 1 | 0 | 0 | 1 | 5 |
532 | Organic Compounds (includes Classes 532-570) | 2 | 1 | 0 | 2 | 0 | 5 |
126 | Stoves and Furnaces | 0 | 1 | 2 | 1 | 0 | 4 |
210 | Liquid Purification or Separation | 1 | 1 | 0 | 1 | 1 | 4 |
211 | Supports: Racks | 2 | 1 | 0 | 1 | 0 | 4 |
340 | Communications: Electrical | 0 | 1 | 0 | 1 | 2 | 4 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 2 | 0 | 0 | 1 | 1 | 4 |
348 | Television | 0 | 0 | 2 | 2 | 0 | 4 |
360 | Dynamic Magnetic Information Storage or Retrieval | 1 | 0 | 0 | 2 | 1 | 4 |
473 | Games Using Tangible Projectile | 0 | 2 | 0 | 0 | 2 | 4 |
606 | Surgery (instruments) | 1 | 0 | 2 | 1 | 0 | 4 |
015 | Brushing, Scrubbing, and General Cleaning | 0 | 0 | 0 | 1 | 2 | 3 |
132 | Toilet | 3 | 0 | 0 | 0 | 0 | 3 |
220 | Receptacles | 0 | 0 | 2 | 0 | 1 | 3 |
261 | Gas and Liquid Contact Apparatus | 0 | 1 | 2 | 0 | 0 | 3 |
356 | Optics: Measuring and Testing | 0 | 1 | 0 | 1 | 1 | 3 |
359 | Optics: Systems (Including Communication) and Elements | 1 | 0 | 1 | 0 | 1 | 3 |
362 | Illumination | 1 | 0 | 1 | 1 | 0 | 3 |
363 | Electric Power Conversion Systems | 1 | 1 | 0 | 0 | 1 | 3 |
366 | Agitating (e.g., of articles and materials) | 0 | 1 | 0 | 1 | 1 | 3 |
427 | Coating Processes | 1 | 0 | 1 | 1 | 0 | 3 |
438 | Semiconductor Device Manufacturing: Process | 1 | 0 | 0 | 2 | 0 | 3 |
455 | Telecommunications | 0 | 0 | 0 | 0 | 3 | 3 |
607 | Surgery: Light, Thermal, and Electrical Application | 0 | 1 | 0 | 0 | 2 | 3 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 1 | 1 | 0 | 0 | 1 | 3 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 1 | 0 | 1 | 1 | 0 | 3 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 1 | 1 | 1 | 0 | 0 | 3 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 0 | 0 | 0 | 2 | 2 |
005 | Beds | 0 | 0 | 0 | 0 | 2 | 2 |
029 | Metal Working | 0 | 0 | 0 | 0 | 2 | 2 |
030 | Cutlery | 0 | 0 | 0 | 2 | 0 | 2 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 0 | 1 | 1 | 0 | 2 |
051 | Abrasive Tool Making Process, Material, or Composition | 0 | 1 | 0 | 1 | 0 | 2 |
053 | Package Making | 1 | 0 | 0 | 1 | 0 | 2 |
056 | Harvesters | 0 | 0 | 0 | 1 | 1 | 2 |
070 | Locks | 0 | 0 | 0 | 2 | 0 | 2 |
084 | Music | 1 | 1 | 0 | 0 | 0 | 2 |
119 | Animal Husbandry | 1 | 0 | 0 | 1 | 0 | 2 |
137 | Fluid Handling | 1 | 0 | 0 | 1 | 0 | 2 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 0 | 1 | 1 | 0 | 0 | 2 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 1 | 1 | 0 | 0 | 0 | 2 |
209 | Classifying, Separating, and Assorting Solids | 0 | 0 | 0 | 1 | 1 | 2 |
219 | Electric Heating | 0 | 0 | 0 | 0 | 2 | 2 |
224 | Package and Article Carriers | 1 | 0 | 0 | 0 | 1 | 2 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 0 | 0 | 1 | 0 | 1 | 2 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 1 | 1 | 0 | 0 | 2 |
241 | Solid Material Comminution or Disintegration | 0 | 0 | 0 | 2 | 0 | 2 |
250 | Radiant Energy | 0 | 0 | 0 | 0 | 2 | 2 |
269 | Work Holders | 0 | 2 | 0 | 0 | 0 | 2 |
273 | Amusement Devices: Games | 1 | 0 | 0 | 1 | 0 | 2 |
280 | Land Vehicles | 0 | 1 | 0 | 0 | 1 | 2 |
281 | Books, Strips, and Leaves | 0 | 0 | 0 | 0 | 2 | 2 |
294 | Handling: Hand and Hoist-Line Implements | 0 | 0 | 1 | 0 | 1 | 2 |
323 | Electricity: Power Supply or Regulation Systems | 0 | 0 | 1 | 1 | 0 | 2 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 1 | 1 | 0 | 0 | 0 | 2 |
336 | Inductor Devices | 0 | 0 | 0 | 0 | 2 | 2 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 0 | 0 | 1 | 0 | 1 | 2 |
338 | Electrical Resistors | 0 | 0 | 1 | 1 | 0 | 2 |
365 | Static Information Storage and Retrieval | 2 | 0 | 0 | 0 | 0 | 2 |
382 | Image Analysis | 0 | 1 | 0 | 0 | 1 | 2 |
383 | Flexible Bags | 0 | 1 | 0 | 0 | 1 | 2 |
385 | Optical Waveguides | 0 | 1 | 0 | 0 | 1 | 2 |
392 | Electric Resistance Heating Devices | 0 | 0 | 0 | 0 | 2 | 2 |
428 | Stock Material or Miscellaneous Articles | 0 | 0 | 1 | 1 | 0 | 2 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 0 | 0 | 1 | 0 | 1 | 2 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 1 | 0 | 0 | 0 | 1 | 2 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 0 | 0 | 1 | 1 | 0 | 2 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 1 | 1 | 0 | 0 | 0 | 2 |
713 | Support (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 0 | 2 | 2 |
714 | Error Detection/Correction and Fault Detection/Recovery | 0 | 0 | 0 | 1 | 1 | 2 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 0 | 0 | 0 | 0 | 1 | 1 |
040 | Card, Picture, or Sign Exhibiting | 0 | 0 | 1 | 0 | 0 | 1 |
047 | Plant Husbandry | 0 | 0 | 0 | 0 | 1 | 1 |
055 | Gas Separation | 0 | 0 | 0 | 0 | 1 | 1 |
060 | Power Plants | 0 | 0 | 0 | 0 | 1 | 1 |
062 | Refrigeration | 1 | 0 | 0 | 0 | 0 | 1 |
100 | Presses | 1 | 0 | 0 | 0 | 0 | 1 |
101 | Printing | 0 | 0 | 0 | 0 | 1 | 1 |
106 | Compositions: Coating or Plastic | 0 | 1 | 0 | 0 | 0 | 1 |
123 | Internal-Combustion Engines | 1 | 0 | 0 | 0 | 0 | 1 |
131 | Tobacco | 0 | 0 | 1 | 0 | 0 | 1 |
138 | Pipes and Tubular Conduits | 0 | 0 | 0 | 1 | 0 | 1 |
139 | Textiles: Weaving | 0 | 0 | 0 | 1 | 0 | 1 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 0 | 0 | 0 | 0 | 1 | 1 |
169 | Fire Extinguishers | 0 | 1 | 0 | 0 | 0 | 1 |
174 | Electricity: Conductors and Insulators | 1 | 0 | 0 | 0 | 0 | 1 |
175 | Boring or Penetrating the Earth | 1 | 0 | 0 | 0 | 0 | 1 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 0 | 0 | 0 | 1 | 0 | 1 |
194 | Check-Actuated Control Mechanisms | 0 | 0 | 1 | 0 | 0 | 1 |
200 | Electricity: Circuit Makers and Breakers | 0 | 0 | 1 | 0 | 0 | 1 |
206 | Special Receptacle or Package | 0 | 0 | 0 | 0 | 1 | 1 |
215 | Bottles and Jars | 0 | 1 | 0 | 0 | 0 | 1 |
221 | Article Dispensing | 0 | 0 | 0 | 1 | 0 | 1 |
223 | Apparel Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 0 | 0 | 1 | 1 |
237 | Heating Systems | 0 | 0 | 0 | 0 | 1 | 1 |
244 | Aeronautics | 0 | 1 | 0 | 0 | 0 | 1 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 0 | 0 | 0 | 1 | 1 |
252 | Compositions | 0 | 0 | 0 | 0 | 1 | 1 |
279 | Chucks or Sockets | 0 | 0 | 0 | 0 | 1 | 1 |
289 | Knots and Knot Tying | 0 | 0 | 1 | 0 | 0 | 1 |
293 | Vehicle Fenders | 0 | 0 | 0 | 0 | 1 | 1 |
297 | Chairs and Seats | 0 | 0 | 0 | 1 | 0 | 1 |
312 | Supports: Cabinet Structure | 0 | 0 | 0 | 0 | 1 | 1 |
315 | Electric Lamp and Discharge Devices: Systems | 0 | 0 | 1 | 0 | 0 | 1 |
324 | Electricity: Measuring and Testing | 0 | 1 | 0 | 0 | 0 | 1 |
331 | Oscillators | 0 | 1 | 0 | 0 | 0 | 1 |
347 | Incremental Printing of Symbolic Information | 0 | 0 | 0 | 1 | 0 | 1 |
368 | Horology: Time Measuring Systems or Devices | 0 | 0 | 0 | 0 | 1 | 1 |
369 | Dynamic Information Storage or Retrieval | 0 | 0 | 0 | 0 | 1 | 1 |
372 | Coherent Light Generators | 0 | 0 | 0 | 1 | 0 | 1 |
375 | Pulse or Digital Communications | 0 | 0 | 0 | 0 | 1 | 1 |
379 | Telephonic Communications | 0 | 0 | 0 | 1 | 0 | 1 |
386 | Television Signal Processing for Dynamic Recording or Reproducing | 0 | 0 | 1 | 0 | 0 | 1 |
399 | Electrophotography | 0 | 0 | 1 | 0 | 0 | 1 |
403 | Joints and Connections | 0 | 0 | 1 | 0 | 0 | 1 |
404 | Road Structure, Process, or Apparatus | 0 | 1 | 0 | 0 | 0 | 1 |
405 | Hydraulic and Earth Engineering | 0 | 0 | 0 | 0 | 1 | 1 |
406 | Conveyors: Fluid Current | 1 | 0 | 0 | 0 | 0 | 1 |
414 | Material or Article Handling | 0 | 0 | 1 | 0 | 0 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 0 | 0 | 1 | 1 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 0 | 0 | 0 | 0 | 1 | 1 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 0 | 0 | 1 | 0 | 1 |
433 | Dentistry | 0 | 0 | 0 | 0 | 1 | 1 |
441 | Buoys, Rafts, and Aquatic Devices | 0 | 0 | 1 | 0 | 0 | 1 |
450 | Foundation Garments | 0 | 0 | 0 | 1 | 0 | 1 |
451 | Abrading | 0 | 0 | 0 | 0 | 1 | 1 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 1 | 0 | 0 | 1 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 1 | 0 | 0 | 0 | 0 | 1 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 0 | 0 | 0 | 1 | 0 | 1 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 1 | 0 | 0 | 0 | 1 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 0 | 0 | 1 | 0 | 1 |
706 | DP: Artificial Intelligence (Data Processing) | 1 | 0 | 0 | 0 | 0 | 1 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 1 | 0 | 0 | 0 | 0 | 1 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 0 | 1 | 0 | 0 | 0 | 1 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 1 | 0 | 0 | 1 |
ALL | ALL CLASSES | 78 | 73 | 74 | 94 | 123 | 442 |
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/