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) | 14 | 17 | 12 | 9 | 18 | 70 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 1 | 6 | 5 | 7 | 15 | 34 |
435 | Chemistry: Molecular Biology and Microbiology | 7 | 2 | 7 | 8 | 10 | 34 |
114 | Ships | 5 | 6 | 5 | 9 | 7 | 32 |
128 | Surgery (includes Class 600) | 6 | 5 | 4 | 2 | 8 | 25 |
405 | Hydraulic and Earth Engineering | 2 | 2 | 4 | 6 | 9 | 23 |
073 | Measuring and Testing | 2 | 1 | 7 | 7 | 3 | 20 |
532 | Organic Compounds (includes Classes 532-570) | 3 | 2 | 3 | 4 | 6 | 18 |
297 | Chairs and Seats | 3 | 1 | 4 | 5 | 4 | 17 |
062 | Refrigeration | 1 | 3 | 2 | 3 | 7 | 16 |
423 | Chemistry of Inorganic Compounds | 2 | 1 | 2 | 7 | 4 | 16 |
360 | Dynamic Magnetic Information Storage or Retrieval | 1 | 1 | 3 | 7 | 3 | 15 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 4 | 2 | 3 | 3 | 2 | 14 |
441 | Buoys, Rafts, and Aquatic Devices | 6 | 2 | 2 | 0 | 4 | 14 |
052 | Static Structures (e.g., Buildings) | 1 | 4 | 2 | 3 | 3 | 13 |
210 | Liquid Purification or Separation | 1 | 2 | 2 | 4 | 4 | 13 |
280 | Land Vehicles | 2 | 2 | 1 | 6 | 2 | 13 |
356 | Optics: Measuring and Testing | 2 | 4 | 2 | 2 | 3 | 13 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 3 | 1 | 0 | 4 | 4 | 12 |
175 | Boring or Penetrating the Earth | 1 | 0 | 3 | 4 | 3 | 11 |
285 | Pipe Joints or Couplings | 1 | 4 | 3 | 3 | 0 | 11 |
172 | Earth Working | 0 | 4 | 3 | 1 | 2 | 10 |
060 | Power Plants | 2 | 3 | 1 | 1 | 2 | 9 |
242 | Winding, Tensioning, or Guiding | 2 | 0 | 1 | 4 | 2 | 9 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 3 | 0 | 2 | 3 | 1 | 9 |
426 | Food or Edible Material: Processes, Compositions, and Products | 0 | 1 | 2 | 4 | 2 | 9 |
043 | Fishing, Trapping, and Vermin Destroying | 0 | 2 | 0 | 4 | 2 | 8 |
137 | Fluid Handling | 1 | 0 | 5 | 2 | 0 | 8 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 1 | 1 | 2 | 4 | 0 | 8 |
164 | Metal Founding | 1 | 3 | 0 | 2 | 2 | 8 |
209 | Classifying, Separating, and Assorting Solids | 1 | 2 | 0 | 2 | 3 | 8 |
428 | Stock Material or Miscellaneous Articles | 4 | 1 | 2 | 0 | 1 | 8 |
439 | Electrical Connectors | 1 | 0 | 1 | 2 | 4 | 8 |
029 | Metal Working | 0 | 1 | 3 | 1 | 2 | 7 |
040 | Card, Picture, or Sign Exhibiting | 0 | 0 | 2 | 3 | 2 | 7 |
053 | Package Making | 1 | 1 | 2 | 0 | 3 | 7 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 0 | 2 | 3 | 0 | 2 | 7 |
089 | Ordnance | 1 | 0 | 0 | 4 | 2 | 7 |
138 | Pipes and Tubular Conduits | 0 | 0 | 2 | 3 | 2 | 7 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 2 | 1 | 1 | 3 | 0 | 7 |
204 | Chemistry: Electrical and Wave Energy | 1 | 1 | 1 | 1 | 3 | 7 |
220 | Receptacles | 1 | 2 | 2 | 0 | 2 | 7 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 0 | 0 | 1 | 2 | 4 | 7 |
414 | Material or Article Handling | 2 | 2 | 0 | 1 | 2 | 7 |
436 | Chemistry: Analytical and Immunological Testing | 1 | 3 | 2 | 1 | 0 | 7 |
119 | Animal Husbandry | 1 | 2 | 1 | 1 | 1 | 6 |
219 | Electric Heating | 3 | 1 | 1 | 1 | 0 | 6 |
604 | Surgery (Medicators and Receptors) | 0 | 1 | 1 | 0 | 4 | 6 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 1 | 0 | 1 | 3 | 1 | 6 |
106 | Compositions: Coating or Plastic | 0 | 1 | 2 | 1 | 1 | 5 |
198 | Conveyors: Power-Driven | 0 | 0 | 3 | 0 | 2 | 5 |
228 | Metal Fusion Bonding | 1 | 0 | 1 | 2 | 1 | 5 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 2 | 0 | 2 | 1 | 5 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 1 | 1 | 1 | 2 | 5 |
250 | Radiant Energy | 0 | 1 | 1 | 2 | 1 | 5 |
340 | Communications: Electrical | 0 | 1 | 2 | 1 | 1 | 5 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 1 | 2 | 1 | 0 | 1 | 5 |
366 | Agitating (e.g., of articles and materials) | 2 | 0 | 0 | 3 | 0 | 5 |
373 | Industrial Electric Heating Furnaces | 0 | 1 | 2 | 1 | 1 | 5 |
403 | Joints and Connections | 2 | 1 | 1 | 0 | 1 | 5 |
452 | Butchering | 1 | 0 | 1 | 1 | 2 | 5 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 1 | 0 | 0 | 0 | 4 | 5 |
070 | Locks | 2 | 0 | 0 | 1 | 1 | 4 |
111 | Planting | 0 | 0 | 1 | 1 | 2 | 4 |
173 | Tool Driving or Impacting | 0 | 0 | 1 | 2 | 1 | 4 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 1 | 1 | 0 | 1 | 1 | 4 |
206 | Special Receptacle or Package | 1 | 1 | 2 | 0 | 0 | 4 |
211 | Supports: Racks | 0 | 1 | 0 | 0 | 3 | 4 |
365 | Static Information Storage and Retrieval | 0 | 0 | 0 | 2 | 2 | 4 |
369 | Dynamic Information Storage or Retrieval | 0 | 0 | 0 | 0 | 4 | 4 |
382 | Image Analysis | 1 | 0 | 0 | 0 | 3 | 4 |
473 | Games Using Tangible Projectile | 0 | 1 | 0 | 2 | 1 | 4 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 1 | 1 | 1 | 0 | 3 |
095 | Gas Separation: Processes | 0 | 0 | 1 | 0 | 2 | 3 |
118 | Coating Apparatus | 1 | 0 | 2 | 0 | 0 | 3 |
134 | Cleaning and Liquid Contact with Solids | 0 | 2 | 1 | 0 | 0 | 3 |
148 | Metal Treatment | 1 | 0 | 1 | 0 | 1 | 3 |
165 | Heat Exchange | 0 | 1 | 0 | 1 | 1 | 3 |
174 | Electricity: Conductors and Insulators | 0 | 0 | 0 | 2 | 1 | 3 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 0 | 2 | 1 | 3 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 1 | 0 | 1 | 1 | 3 |
277 | Seal for a Joint or Juncture | 0 | 0 | 1 | 2 | 0 | 3 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 1 | 1 | 0 | 1 | 0 | 3 |
361 | Electricity: Electrical Systems and Devices | 2 | 1 | 0 | 0 | 0 | 3 |
375 | Pulse or Digital Communications | 1 | 0 | 0 | 1 | 1 | 3 |
431 | Combustion | 0 | 0 | 1 | 1 | 1 | 3 |
454 | Ventilation | 0 | 0 | 3 | 0 | 0 | 3 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 0 | 0 | 2 | 0 | 1 | 3 |
585 | Chemistry of Hydrocarbon Compounds | 1 | 1 | 0 | 1 | 0 | 3 |
606 | Surgery (instruments) | 0 | 1 | 1 | 0 | 1 | 3 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 0 | 0 | 0 | 2 | 2 |
005 | Beds | 1 | 0 | 0 | 0 | 1 | 2 |
037 | Excavating | 0 | 0 | 1 | 0 | 1 | 2 |
055 | Gas Separation | 1 | 0 | 1 | 0 | 0 | 2 |
071 | Chemistry: Fertilizers | 0 | 1 | 0 | 1 | 0 | 2 |
074 | Machine Element or Mechanism | 0 | 2 | 0 | 0 | 0 | 2 |
082 | Turning (e.g., for metal working) | 0 | 0 | 0 | 1 | 1 | 2 |
092 | Expansible Chamber Devices | 1 | 0 | 0 | 1 | 0 | 2 |
108 | Horizontally Supported Planar Surfaces | 0 | 1 | 1 | 0 | 0 | 2 |
110 | Furnaces | 0 | 1 | 1 | 0 | 0 | 2 |
126 | Stoves and Furnaces | 0 | 0 | 0 | 0 | 2 | 2 |
162 | Paper Making and Fiber Liberation | 0 | 0 | 2 | 0 | 0 | 2 |
169 | Fire Extinguishers | 0 | 0 | 1 | 1 | 0 | 2 |
181 | Acoustics | 0 | 1 | 0 | 0 | 1 | 2 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 1 | 1 | 0 | 0 | 0 | 2 |
194 | Check-Actuated Control Mechanisms | 0 | 0 | 0 | 2 | 0 | 2 |
208 | Mineral Oils: Processes and Products | 0 | 0 | 0 | 1 | 1 | 2 |
226 | Advancing Material of Indeterminate Length | 0 | 0 | 1 | 1 | 0 | 2 |
251 | Valves and Valve Actuation | 1 | 0 | 0 | 1 | 0 | 2 |
294 | Handling: Hand and Hoist-Line Implements | 1 | 0 | 1 | 0 | 0 | 2 |
310 | Electrical Generator or Motor Structure | 0 | 0 | 0 | 1 | 1 | 2 |
312 | Supports: Cabinet Structure | 1 | 0 | 1 | 0 | 0 | 2 |
362 | Illumination | 0 | 0 | 1 | 1 | 0 | 2 |
372 | Coherent Light Generators | 0 | 0 | 2 | 0 | 0 | 2 |
392 | Electric Resistance Heating Devices | 0 | 0 | 0 | 1 | 1 | 2 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 0 | 0 | 2 | 0 | 0 | 2 |
427 | Coating Processes | 2 | 0 | 0 | 0 | 0 | 2 |
434 | Education and Demonstration | 0 | 0 | 0 | 1 | 1 | 2 |
438 | Semiconductor Device Manufacturing: Process | 0 | 1 | 0 | 0 | 1 | 2 |
440 | Marine Propulsion | 0 | 1 | 1 | 0 | 0 | 2 |
451 | Abrading | 0 | 0 | 2 | 0 | 0 | 2 |
455 | Telecommunications | 0 | 0 | 0 | 1 | 1 | 2 |
482 | Exercise Devices | 1 | 1 | 0 | 0 | 0 | 2 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 0 | 0 | 0 | 1 | 1 | 2 |
601 | Surgery: Kinesitherapy | 0 | 1 | 0 | 0 | 1 | 2 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 0 | 0 | 2 | 0 | 0 | 2 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 0 | 0 | 2 | 0 | 0 | 2 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 0 | 1 | 1 | 2 |
014 | Bridges | 0 | 0 | 1 | 0 | 0 | 1 |
015 | Brushing, Scrubbing, and General Cleaning | 0 | 0 | 1 | 0 | 0 | 1 |
016 | Miscellaneous Hardware | 0 | 0 | 1 | 0 | 0 | 1 |
024 | Buckles, Buttons, Clasps, Etc. | 1 | 0 | 0 | 0 | 0 | 1 |
042 | Firearms | 0 | 0 | 0 | 0 | 1 | 1 |
047 | Plant Husbandry | 0 | 1 | 0 | 0 | 0 | 1 |
048 | Gas: Heating and Illuminating | 0 | 0 | 1 | 0 | 0 | 1 |
057 | Textiles: Spinning, Twisting, and Twining | 0 | 1 | 0 | 0 | 0 | 1 |
059 | Chain, Staple, and Horseshoe Making | 0 | 0 | 1 | 0 | 0 | 1 |
072 | Metal Deforming | 0 | 0 | 0 | 1 | 0 | 1 |
081 | Tools | 0 | 0 | 1 | 0 | 0 | 1 |
084 | Music | 0 | 0 | 0 | 1 | 0 | 1 |
100 | Presses | 1 | 0 | 0 | 0 | 0 | 1 |
102 | Ammunition and Explosives | 0 | 0 | 1 | 0 | 0 | 1 |
104 | Railways | 1 | 0 | 0 | 0 | 0 | 1 |
123 | Internal-Combustion Engines | 0 | 0 | 0 | 1 | 0 | 1 |
127 | Sugar, Starch, and Carbohydrates | 0 | 0 | 0 | 1 | 0 | 1 |
139 | Textiles: Weaving | 0 | 0 | 1 | 0 | 0 | 1 |
152 | Resilient Tires and Wheels | 0 | 0 | 1 | 0 | 0 | 1 |
160 | Flexible or Portable Closure, Partition, or Panel | 1 | 0 | 0 | 0 | 0 | 1 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 0 | 1 | 0 | 0 | 1 |
188 | Brakes | 0 | 0 | 1 | 0 | 0 | 1 |
192 | Clutches and Power-Stop Control | 0 | 1 | 0 | 0 | 0 | 1 |
196 | Mineral Oils: Apparatus | 0 | 0 | 0 | 0 | 1 | 1 |
200 | Electricity: Circuit Makers and Breakers | 0 | 0 | 1 | 0 | 0 | 1 |
203 | Distillation: Processes, Separatory | 0 | 1 | 0 | 0 | 0 | 1 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 0 | 0 | 0 | 0 | 1 | 1 |
236 | Automatic Temperature and Humidity Regulation | 0 | 0 | 0 | 0 | 1 | 1 |
241 | Solid Material Comminution or Disintegration | 0 | 0 | 0 | 1 | 0 | 1 |
249 | Static Molds | 0 | 0 | 1 | 0 | 0 | 1 |
267 | Spring Devices | 1 | 0 | 0 | 0 | 0 | 1 |
273 | Amusement Devices: Games | 0 | 0 | 1 | 0 | 0 | 1 |
283 | Printed Matter | 0 | 0 | 0 | 0 | 1 | 1 |
293 | Vehicle Fenders | 0 | 0 | 0 | 1 | 0 | 1 |
296 | Land Vehicles: Bodies and Tops | 0 | 0 | 0 | 1 | 0 | 1 |
301 | Land Vehicles: Wheels and Axles | 0 | 0 | 0 | 0 | 1 | 1 |
315 | Electric Lamp and Discharge Devices: Systems | 1 | 0 | 0 | 0 | 0 | 1 |
324 | Electricity: Measuring and Testing | 0 | 0 | 1 | 0 | 0 | 1 |
330 | Amplifiers | 0 | 0 | 0 | 0 | 1 | 1 |
333 | Wave Transmission Lines and Networks | 0 | 0 | 1 | 0 | 0 | 1 |
336 | Inductor Devices | 0 | 0 | 0 | 0 | 1 | 1 |
348 | Television | 0 | 0 | 0 | 0 | 1 | 1 |
359 | Optics: Systems (Including Communication) and Elements | 0 | 0 | 0 | 1 | 0 | 1 |
363 | Electric Power Conversion Systems | 0 | 0 | 0 | 1 | 0 | 1 |
370 | Multiplex Communications | 0 | 0 | 0 | 0 | 1 | 1 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 0 | 0 | 1 | 0 | 0 | 1 |
381 | Electrical Audio Signal Processing Systems and Devices | 1 | 0 | 0 | 0 | 0 | 1 |
404 | Road Structure, Process, or Apparatus | 0 | 0 | 0 | 0 | 1 | 1 |
406 | Conveyors: Fluid Current | 1 | 0 | 0 | 0 | 0 | 1 |
410 | Freight Accommodation On Freight Carrier | 0 | 0 | 0 | 0 | 1 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 0 | 1 | 0 | 1 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 0 | 0 | 0 | 0 | 1 | 1 |
420 | Alloys or Metallic Compositions | 1 | 0 | 0 | 0 | 0 | 1 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 0 | 1 | 0 | 0 | 1 |
432 | Heating | 0 | 0 | 1 | 0 | 0 | 1 |
446 | Amusement Devices: Toys | 0 | 0 | 0 | 1 | 0 | 1 |
477 | Interrelated Power Delivery Controls, Including Engine Control | 0 | 0 | 0 | 1 | 0 | 1 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 0 | 0 | 1 | 0 | 0 | 1 |
505 | Superconductor Technology: Apparatus, Material, Process | 0 | 1 | 0 | 0 | 0 | 1 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 0 | 0 | 0 | 0 | 1 | 1 |
602 | Surgery: Splint, Brace, or Bandage | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 1 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 0 | 0 | 0 | 1 | 0 | 1 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 0 | 0 | 1 | 0 | 1 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 0 | 0 | 0 | 1 | 0 | 1 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 0 | 1 | 0 | 0 | 0 | 1 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 1 | 0 | 0 | 0 | 0 | 1 |
713 | Support (Electrical Computers and Digital Processing Systems) | 0 | 0 | 1 | 0 | 0 | 1 |
714 | Error Detection/Correction and Fault Detection/Recovery | 0 | 0 | 1 | 0 | 0 | 1 |
725 | Interactive Video Distribution Systems | 0 | 0 | 1 | 0 | 0 | 1 |
ALL | ALL CLASSES | 139 | 142 | 198 | 224 | 248 | 951 |
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
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ftp download of TAF reports from : ftp.uspto.gov/pub/taf/