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) | 12 | 23 | 23 | 28 | 28 | 114 |
435 | Chemistry: Molecular Biology and Microbiology | 3 | 5 | 12 | 15 | 7 | 42 |
375 | Pulse or Digital Communications | 8 | 9 | 7 | 8 | 2 | 34 |
370 | Multiplex Communications | 4 | 6 | 7 | 9 | 6 | 32 |
482 | Exercise Devices | 7 | 8 | 3 | 8 | 5 | 31 |
532 | Organic Compounds (includes Classes 532-570) | 3 | 6 | 8 | 11 | 3 | 31 |
128 | Surgery (includes Class 600) | 2 | 2 | 8 | 9 | 6 | 27 |
606 | Surgery (instruments) | 2 | 10 | 4 | 5 | 5 | 26 |
222 | Dispensing (apparatus and process) | 9 | 4 | 4 | 4 | 4 | 25 |
379 | Telephonic Communications | 3 | 6 | 5 | 6 | 5 | 25 |
052 | Static Structures (e.g., Buildings) | 1 | 7 | 6 | 3 | 7 | 24 |
359 | Optics: Systems (Including Communication) and Elements | 4 | 4 | 7 | 8 | 1 | 24 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 3 | 4 | 2 | 11 | 4 | 24 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 1 | 0 | 7 | 4 | 11 | 23 |
428 | Stock Material or Miscellaneous Articles | 5 | 3 | 5 | 5 | 4 | 22 |
414 | Material or Article Handling | 4 | 4 | 5 | 5 | 3 | 21 |
206 | Special Receptacle or Package | 2 | 2 | 4 | 6 | 6 | 20 |
604 | Surgery (Medicators and Receptors) | 4 | 5 | 4 | 3 | 4 | 20 |
073 | Measuring and Testing | 4 | 5 | 6 | 2 | 2 | 19 |
280 | Land Vehicles | 6 | 2 | 3 | 6 | 2 | 19 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 2 | 2 | 4 | 8 | 3 | 19 |
210 | Liquid Purification or Separation | 5 | 2 | 4 | 4 | 2 | 17 |
244 | Aeronautics | 1 | 4 | 4 | 4 | 4 | 17 |
248 | Supports (e.g., for holding articles, etc.) | 2 | 3 | 4 | 3 | 4 | 16 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 3 | 2 | 5 | 2 | 4 | 16 |
002 | Apparel | 2 | 2 | 3 | 4 | 4 | 15 |
219 | Electric Heating | 3 | 1 | 2 | 7 | 2 | 15 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 1 | 1 | 4 | 7 | 1 | 14 |
361 | Electricity: Electrical Systems and Devices | 1 | 1 | 5 | 4 | 3 | 14 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 1 | 1 | 5 | 4 | 3 | 14 |
015 | Brushing, Scrubbing, and General Cleaning | 3 | 0 | 3 | 3 | 4 | 13 |
043 | Fishing, Trapping, and Vermin Destroying | 2 | 1 | 4 | 4 | 2 | 13 |
119 | Animal Husbandry | 2 | 0 | 7 | 2 | 2 | 13 |
137 | Fluid Handling | 1 | 1 | 6 | 3 | 2 | 13 |
220 | Receptacles | 4 | 4 | 2 | 2 | 1 | 13 |
340 | Communications: Electrical | 4 | 1 | 3 | 2 | 3 | 13 |
607 | Surgery: Light, Thermal, and Electrical Application | 3 | 0 | 2 | 7 | 1 | 13 |
029 | Metal Working | 2 | 3 | 1 | 2 | 4 | 12 |
062 | Refrigeration | 2 | 1 | 3 | 3 | 3 | 12 |
297 | Chairs and Seats | 3 | 1 | 2 | 5 | 1 | 12 |
056 | Harvesters | 0 | 5 | 2 | 2 | 2 | 11 |
250 | Radiant Energy | 2 | 1 | 4 | 3 | 1 | 11 |
356 | Optics: Measuring and Testing | 3 | 2 | 2 | 1 | 3 | 11 |
427 | Coating Processes | 3 | 2 | 1 | 1 | 4 | 11 |
060 | Power Plants | 2 | 3 | 2 | 0 | 3 | 10 |
242 | Winding, Tensioning, or Guiding | 1 | 2 | 3 | 2 | 2 | 10 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 2 | 2 | 0 | 3 | 3 | 10 |
405 | Hydraulic and Earth Engineering | 3 | 3 | 0 | 1 | 3 | 10 |
433 | Dentistry | 2 | 5 | 1 | 0 | 2 | 10 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 1 | 0 | 5 | 2 | 2 | 10 |
102 | Ammunition and Explosives | 1 | 1 | 3 | 2 | 2 | 9 |
149 | Explosive and Thermic Compositions or Charges | 2 | 3 | 0 | 0 | 4 | 9 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 1 | 2 | 4 | 1 | 1 | 9 |
162 | Paper Making and Fiber Liberation | 1 | 3 | 2 | 2 | 1 | 9 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 1 | 2 | 4 | 2 | 9 |
273 | Amusement Devices: Games | 0 | 3 | 1 | 4 | 1 | 9 |
004 | Baths, Closets, Sinks, and Spittoons | 1 | 2 | 2 | 2 | 1 | 8 |
165 | Heat Exchange | 0 | 1 | 1 | 4 | 2 | 8 |
211 | Supports: Racks | 0 | 2 | 1 | 3 | 2 | 8 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 0 | 2 | 2 | 3 | 1 | 8 |
324 | Electricity: Measuring and Testing | 2 | 1 | 1 | 1 | 3 | 8 |
473 | Games Using Tangible Projectile | 2 | 2 | 3 | 0 | 1 | 8 |
602 | Surgery: Splint, Brace, or Bandage | 3 | 2 | 2 | 0 | 1 | 8 |
005 | Beds | 3 | 0 | 1 | 2 | 1 | 7 |
047 | Plant Husbandry | 1 | 1 | 3 | 0 | 2 | 7 |
071 | Chemistry: Fertilizers | 1 | 3 | 2 | 1 | 0 | 7 |
126 | Stoves and Furnaces | 0 | 0 | 1 | 3 | 3 | 7 |
144 | Woodworking | 2 | 1 | 0 | 3 | 1 | 7 |
241 | Solid Material Comminution or Disintegration | 0 | 1 | 3 | 2 | 1 | 7 |
362 | Illumination | 3 | 0 | 2 | 0 | 2 | 7 |
383 | Flexible Bags | 0 | 0 | 3 | 2 | 2 | 7 |
423 | Chemistry of Inorganic Compounds | 3 | 1 | 1 | 0 | 2 | 7 |
426 | Food or Edible Material: Processes, Compositions, and Products | 1 | 1 | 2 | 3 | 0 | 7 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 0 | 1 | 2 | 3 | 1 | 7 |
030 | Cutlery | 3 | 1 | 2 | 0 | 0 | 6 |
070 | Locks | 2 | 1 | 0 | 2 | 1 | 6 |
074 | Machine Element or Mechanism | 1 | 1 | 1 | 1 | 2 | 6 |
099 | Foods and Beverages: Apparatus | 1 | 2 | 0 | 1 | 2 | 6 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 2 | 1 | 1 | 1 | 1 | 6 |
160 | Flexible or Portable Closure, Partition, or Panel | 2 | 0 | 2 | 1 | 1 | 6 |
200 | Electricity: Circuit Makers and Breakers | 3 | 3 | 0 | 0 | 0 | 6 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 1 | 2 | 1 | 1 | 1 | 6 |
285 | Pipe Joints or Couplings | 2 | 0 | 1 | 1 | 2 | 6 |
296 | Land Vehicles: Bodies and Tops | 0 | 1 | 1 | 2 | 2 | 6 |
307 | Electrical Transmission or Interconnection Systems | 3 | 0 | 0 | 1 | 2 | 6 |
360 | Dynamic Magnetic Information Storage or Retrieval | 0 | 0 | 1 | 3 | 2 | 6 |
417 | Pumps | 0 | 0 | 2 | 2 | 2 | 6 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 1 | 3 | 1 | 1 | 0 | 6 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 1 | 0 | 2 | 2 | 1 | 6 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 2 | 0 | 1 | 1 | 1 | 5 |
083 | Cutting | 2 | 3 | 0 | 0 | 0 | 5 |
122 | Liquid Heaters and Vaporizers | 2 | 1 | 0 | 1 | 1 | 5 |
123 | Internal-Combustion Engines | 1 | 0 | 3 | 0 | 1 | 5 |
181 | Acoustics | 1 | 0 | 1 | 2 | 1 | 5 |
221 | Article Dispensing | 0 | 0 | 2 | 2 | 1 | 5 |
252 | Compositions | 0 | 1 | 3 | 1 | 0 | 5 |
312 | Supports: Cabinet Structure | 0 | 0 | 1 | 1 | 3 | 5 |
439 | Electrical Connectors | 2 | 0 | 1 | 0 | 2 | 5 |
588 | Hazardous or Toxic Waste Destruction or Containment | 2 | 0 | 1 | 1 | 1 | 5 |
036 | Boots, Shoes, and Leggings | 0 | 1 | 0 | 1 | 2 | 4 |
037 | Excavating | 2 | 1 | 0 | 1 | 0 | 4 |
044 | Fuel and Related Compositions | 0 | 3 | 1 | 0 | 0 | 4 |
053 | Package Making | 1 | 2 | 0 | 1 | 0 | 4 |
082 | Turning (e.g., for metal working) | 1 | 3 | 0 | 0 | 0 | 4 |
095 | Gas Separation: Processes | 2 | 1 | 0 | 1 | 0 | 4 |
096 | Gas Separation: Apparatus | 1 | 1 | 1 | 0 | 1 | 4 |
104 | Railways | 0 | 2 | 0 | 1 | 1 | 4 |
108 | Horizontally Supported Planar Surfaces | 0 | 0 | 2 | 1 | 1 | 4 |
114 | Ships | 1 | 0 | 1 | 2 | 0 | 4 |
134 | Cleaning and Liquid Contact with Solids | 1 | 1 | 1 | 0 | 1 | 4 |
174 | Electricity: Conductors and Insulators | 2 | 1 | 1 | 0 | 0 | 4 |
188 | Brakes | 0 | 0 | 3 | 0 | 1 | 4 |
198 | Conveyors: Power-Driven | 1 | 1 | 1 | 0 | 1 | 4 |
204 | Chemistry: Electrical and Wave Energy | 0 | 1 | 0 | 1 | 2 | 4 |
224 | Package and Article Carriers | 1 | 3 | 0 | 0 | 0 | 4 |
228 | Metal Fusion Bonding | 0 | 0 | 0 | 2 | 2 | 4 |
315 | Electric Lamp and Discharge Devices: Systems | 1 | 1 | 1 | 0 | 1 | 4 |
348 | Television | 1 | 0 | 0 | 2 | 1 | 4 |
372 | Coherent Light Generators | 1 | 1 | 1 | 1 | 0 | 4 |
382 | Image Analysis | 1 | 0 | 2 | 1 | 0 | 4 |
392 | Electric Resistance Heating Devices | 0 | 1 | 0 | 3 | 0 | 4 |
434 | Education and Demonstration | 0 | 2 | 0 | 1 | 1 | 4 |
440 | Marine Propulsion | 1 | 0 | 2 | 1 | 0 | 4 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 0 | 0 | 2 | 2 | 0 | 4 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 0 | 0 | 1 | 3 | 4 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 0 | 0 | 2 | 0 | 2 | 4 |
714 | Error Detection/Correction and Fault Detection/Recovery | 0 | 0 | 0 | 2 | 2 | 4 |
007 | Compound Hand Tools | 0 | 1 | 0 | 0 | 2 | 3 |
042 | Firearms | 1 | 0 | 0 | 2 | 0 | 3 |
072 | Metal Deforming | 0 | 2 | 0 | 1 | 0 | 3 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 1 | 0 | 0 | 1 | 1 | 3 |
087 | Textiles: Braiding, Netting, and Lace Making | 0 | 0 | 1 | 2 | 0 | 3 |
092 | Expansible Chamber Devices | 1 | 0 | 2 | 0 | 0 | 3 |
106 | Compositions: Coating or Plastic | 0 | 0 | 0 | 2 | 1 | 3 |
112 | Sewing | 1 | 0 | 1 | 1 | 0 | 3 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 1 | 1 | 0 | 0 | 1 | 3 |
118 | Coating Apparatus | 0 | 0 | 0 | 2 | 1 | 3 |
172 | Earth Working | 1 | 1 | 0 | 1 | 0 | 3 |
194 | Check-Actuated Control Mechanisms | 0 | 1 | 1 | 1 | 0 | 3 |
293 | Vehicle Fenders | 1 | 0 | 2 | 0 | 0 | 3 |
313 | Electric Lamp and Discharge Devices | 0 | 1 | 2 | 0 | 0 | 3 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 1 | 0 | 0 | 2 | 0 | 3 |
343 | Communications: Radio Wave Antennas | 0 | 1 | 0 | 1 | 1 | 3 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 1 | 1 | 1 | 0 | 0 | 3 |
381 | Electrical Audio Signal Processing Systems and Devices | 0 | 1 | 1 | 0 | 1 | 3 |
400 | Typewriting Machines | 0 | 2 | 0 | 0 | 1 | 3 |
409 | Gear Cutting, Milling, or Planing | 1 | 0 | 1 | 0 | 1 | 3 |
410 | Freight Accommodation On Freight Carrier | 0 | 1 | 0 | 0 | 2 | 3 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 1 | 1 | 1 | 0 | 0 | 3 |
432 | Heating | 1 | 1 | 0 | 1 | 0 | 3 |
436 | Chemistry: Analytical and Immunological Testing | 0 | 2 | 0 | 1 | 0 | 3 |
441 | Buoys, Rafts, and Aquatic Devices | 1 | 0 | 1 | 0 | 1 | 3 |
455 | Telecommunications | 1 | 0 | 0 | 1 | 1 | 3 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 0 | 0 | 2 | 1 | 0 | 3 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 1 | 0 | 0 | 2 | 0 | 3 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 1 | 1 | 1 | 0 | 3 |
019 | Textiles: Fiber Preparation | 0 | 0 | 0 | 0 | 2 | 2 |
024 | Buckles, Buttons, Clasps, Etc. | 0 | 1 | 0 | 1 | 0 | 2 |
028 | Textiles: Manufacturing | 0 | 0 | 0 | 1 | 1 | 2 |
033 | Geometrical Instruments | 0 | 0 | 0 | 0 | 2 | 2 |
038 | Textiles: Ironing or Smoothing | 1 | 0 | 0 | 0 | 1 | 2 |
048 | Gas: Heating and Illuminating | 0 | 2 | 0 | 0 | 0 | 2 |
081 | Tools | 1 | 0 | 0 | 0 | 1 | 2 |
084 | Music | 1 | 0 | 0 | 1 | 0 | 2 |
089 | Ordnance | 1 | 0 | 0 | 0 | 1 | 2 |
101 | Printing | 0 | 0 | 0 | 2 | 0 | 2 |
105 | Railway Rolling Stock | 1 | 0 | 0 | 0 | 1 | 2 |
110 | Furnaces | 1 | 0 | 0 | 1 | 0 | 2 |
116 | Signals and Indicators | 1 | 1 | 0 | 0 | 0 | 2 |
124 | Mechanical Guns and Projectors | 0 | 2 | 0 | 0 | 0 | 2 |
132 | Toilet | 0 | 1 | 0 | 1 | 0 | 2 |
148 | Metal Treatment | 0 | 0 | 1 | 0 | 1 | 2 |
152 | Resilient Tires and Wheels | 0 | 0 | 2 | 0 | 0 | 2 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 0 | 2 | 0 | 0 | 0 | 2 |
168 | Farriery | 0 | 1 | 1 | 0 | 0 | 2 |
180 | Motor Vehicles | 1 | 0 | 0 | 0 | 1 | 2 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 0 | 0 | 0 | 1 | 1 | 2 |
209 | Classifying, Separating, and Assorting Solids | 0 | 1 | 1 | 0 | 0 | 2 |
223 | Apparel Apparatus | 0 | 1 | 0 | 1 | 0 | 2 |
232 | Deposit and Collection Receptacles | 0 | 1 | 0 | 1 | 0 | 2 |
236 | Automatic Temperature and Humidity Regulation | 0 | 0 | 1 | 1 | 0 | 2 |
249 | Static Molds | 0 | 0 | 0 | 1 | 1 | 2 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 1 | 0 | 1 | 0 | 0 | 2 |
294 | Handling: Hand and Hoist-Line Implements | 0 | 0 | 1 | 1 | 0 | 2 |
301 | Land Vehicles: Wheels and Axles | 1 | 0 | 1 | 0 | 0 | 2 |
303 | Fluid-Pressure and Analogous Brake Systems | 0 | 1 | 0 | 0 | 1 | 2 |
310 | Electrical Generator or Motor Structure | 0 | 0 | 1 | 1 | 0 | 2 |
318 | Electricity: Motive Power Systems | 0 | 0 | 0 | 0 | 2 | 2 |
326 | Electronic Digital Logic Circuitry | 1 | 0 | 1 | 0 | 0 | 2 |
347 | Incremental Printing of Symbolic Information | 0 | 0 | 1 | 0 | 1 | 2 |
363 | Electric Power Conversion Systems | 1 | 0 | 1 | 0 | 0 | 2 |
365 | Static Information Storage and Retrieval | 1 | 0 | 0 | 1 | 0 | 2 |
366 | Agitating (e.g., of articles and materials) | 1 | 0 | 0 | 0 | 1 | 2 |
369 | Dynamic Information Storage or Retrieval | 0 | 1 | 1 | 0 | 0 | 2 |
374 | Thermal Measuring and Testing | 0 | 1 | 0 | 1 | 0 | 2 |
378 | X-Ray or Gamma Ray Systems or Devices | 0 | 0 | 0 | 0 | 2 | 2 |
403 | Joints and Connections | 0 | 0 | 1 | 1 | 0 | 2 |
404 | Road Structure, Process, or Apparatus | 1 | 1 | 0 | 0 | 0 | 2 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 1 | 1 | 0 | 0 | 0 | 2 |
418 | Rotary Expansible Chamber Devices | 1 | 0 | 0 | 0 | 1 | 2 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 0 | 1 | 0 | 1 | 2 |
446 | Amusement Devices: Toys | 1 | 0 | 1 | 0 | 0 | 2 |
451 | Abrading | 0 | 0 | 2 | 0 | 0 | 2 |
452 | Butchering | 0 | 1 | 0 | 0 | 1 | 2 |
454 | Ventilation | 0 | 2 | 0 | 0 | 0 | 2 |
472 | Amusement Devices | 0 | 1 | 1 | 0 | 0 | 2 |
474 | Endless Belt Power Transmission Systems or Components | 0 | 0 | 1 | 0 | 1 | 2 |
483 | Tool Changing | 0 | 0 | 0 | 1 | 1 | 2 |
501 | Compositions: Ceramic | 1 | 1 | 0 | 0 | 0 | 2 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 0 | 0 | 0 | 1 | 1 | 2 |
713 | Support (Electrical Computers and Digital Processing Systems) | 0 | 0 | 2 | 0 | 0 | 2 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 1 | 0 | 1 | 0 | 0 | 2 |
014 | Bridges | 0 | 0 | 0 | 0 | 1 | 1 |
027 | Undertaking | 0 | 1 | 0 | 0 | 0 | 1 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 0 | 1 | 0 | 0 | 1 |
049 | Movable or Removable Closures | 0 | 1 | 0 | 0 | 0 | 1 |
051 | Abrasive Tool Making Process, Material, or Composition | 1 | 0 | 0 | 0 | 0 | 1 |
055 | Gas Separation | 0 | 0 | 1 | 0 | 0 | 1 |
068 | Textiles: Fluid Treating Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
076 | Metal Tools and Implements, Making | 0 | 0 | 1 | 0 | 0 | 1 |
086 | Ammunition and Explosive-Charge Making | 0 | 0 | 0 | 1 | 0 | 1 |
100 | Presses | 0 | 0 | 0 | 0 | 1 | 1 |
131 | Tobacco | 1 | 0 | 0 | 0 | 0 | 1 |
136 | Batteries: Thermoelectric and Photoelectric | 0 | 0 | 0 | 0 | 1 | 1 |
138 | Pipes and Tubular Conduits | 0 | 0 | 0 | 1 | 0 | 1 |
169 | Fire Extinguishers | 0 | 0 | 0 | 1 | 0 | 1 |
171 | Unearthing Plants or Buried Objects | 0 | 0 | 0 | 0 | 1 | 1 |
173 | Tool Driving or Impacting | 0 | 0 | 0 | 0 | 1 | 1 |
190 | Trunks and Hand-Carried Luggage | 0 | 0 | 0 | 1 | 0 | 1 |
192 | Clutches and Power-Stop Control | 0 | 0 | 0 | 0 | 1 | 1 |
201 | Distillation: Processes, Thermolytic | 0 | 1 | 0 | 0 | 0 | 1 |
226 | Advancing Material of Indeterminate Length | 0 | 1 | 0 | 0 | 0 | 1 |
245 | Wire Fabrics and Structure | 0 | 0 | 1 | 0 | 0 | 1 |
246 | Railway Switches and Signals | 0 | 0 | 0 | 0 | 1 | 1 |
251 | Valves and Valve Actuation | 0 | 0 | 0 | 1 | 0 | 1 |
256 | Fences | 1 | 0 | 0 | 0 | 0 | 1 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 1 | 0 | 0 | 0 | 0 | 1 |
266 | Metallurgical Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
267 | Spring Devices | 0 | 0 | 0 | 0 | 1 | 1 |
277 | Seal for a Joint or Juncture | 0 | 0 | 0 | 0 | 1 | 1 |
281 | Books, Strips, and Leaves | 0 | 0 | 0 | 1 | 0 | 1 |
283 | Printed Matter | 0 | 0 | 1 | 0 | 0 | 1 |
292 | Closure Fasteners | 0 | 0 | 0 | 0 | 1 | 1 |
298 | Land Vehicles: Dumping | 1 | 0 | 0 | 0 | 0 | 1 |
322 | Electricity: Single Generator Systems | 1 | 0 | 0 | 0 | 0 | 1 |
323 | Electricity: Power Supply or Regulation Systems | 0 | 1 | 0 | 0 | 0 | 1 |
330 | Amplifiers | 0 | 0 | 0 | 1 | 0 | 1 |
333 | Wave Transmission Lines and Networks | 1 | 0 | 0 | 0 | 0 | 1 |
338 | Electrical Resistors | 1 | 0 | 0 | 0 | 0 | 1 |
341 | Coded Data Generation or Conversion | 0 | 0 | 0 | 0 | 1 | 1 |
358 | Facsimile and Static Presentation Processing | 0 | 1 | 0 | 0 | 0 | 1 |
373 | Industrial Electric Heating Furnaces | 0 | 0 | 0 | 1 | 0 | 1 |
380 | Cryptography | 0 | 0 | 1 | 0 | 0 | 1 |
385 | Optical Waveguides | 0 | 0 | 1 | 0 | 0 | 1 |
388 | Electricity: Motor Control Systems | 0 | 0 | 0 | 1 | 0 | 1 |
407 | Cutters, for Shaping | 0 | 0 | 0 | 1 | 0 | 1 |
408 | Cutting by Use of Rotating Axially Moving Tool | 0 | 0 | 0 | 1 | 0 | 1 |
420 | Alloys or Metallic Compositions | 0 | 0 | 0 | 0 | 1 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 0 | 0 | 1 | 0 | 1 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 1 | 0 | 0 | 0 | 0 | 1 |
463 | Amusement Devices: Games | 0 | 0 | 0 | 0 | 1 | 1 |
492 | Roll or Roller | 0 | 0 | 0 | 1 | 0 | 1 |
494 | Imperforate Bowl: Centrifugal Separators | 0 | 0 | 0 | 1 | 0 | 1 |
505 | Superconductor Technology: Apparatus, Material, Process | 1 | 0 | 0 | 0 | 0 | 1 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 0 | 0 | 0 | 0 | 1 | 1 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 0 | 1 | 0 | 0 | 0 | 1 |
706 | DP: Artificial Intelligence (Data Processing) | 0 | 1 | 0 | 0 | 0 | 1 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 0 | 1 | 1 |
ALL | ALL CLASSES | 278 | 300 | 365 | 405 | 337 | 1685 |
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/