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) | 11 | 9 | 16 | 20 | 10 | 66 |
532 | Organic Compounds (includes Classes 532-570) | 4 | 9 | 10 | 7 | 5 | 35 |
435 | Chemistry: Molecular Biology and Microbiology | 6 | 4 | 9 | 7 | 8 | 34 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 2 | 0 | 5 | 6 | 9 | 22 |
428 | Stock Material or Miscellaneous Articles | 2 | 5 | 4 | 3 | 7 | 21 |
128 | Surgery (includes Class 600) | 1 | 4 | 3 | 2 | 8 | 18 |
204 | Chemistry: Electrical and Wave Energy | 3 | 3 | 4 | 3 | 4 | 17 |
310 | Electrical Generator or Motor Structure | 1 | 0 | 2 | 5 | 7 | 15 |
219 | Electric Heating | 1 | 3 | 2 | 4 | 4 | 14 |
073 | Measuring and Testing | 2 | 3 | 4 | 3 | 1 | 13 |
244 | Aeronautics | 3 | 1 | 3 | 3 | 3 | 13 |
385 | Optical Waveguides | 3 | 0 | 4 | 5 | 1 | 13 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 5 | 1 | 5 | 0 | 1 | 12 |
313 | Electric Lamp and Discharge Devices | 1 | 1 | 3 | 6 | 1 | 12 |
356 | Optics: Measuring and Testing | 3 | 3 | 3 | 2 | 1 | 12 |
427 | Coating Processes | 2 | 5 | 2 | 2 | 1 | 12 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 3 | 1 | 3 | 1 | 3 | 11 |
315 | Electric Lamp and Discharge Devices: Systems | 2 | 0 | 3 | 2 | 4 | 11 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 0 | 3 | 2 | 4 | 2 | 11 |
606 | Surgery (instruments) | 2 | 2 | 3 | 2 | 2 | 11 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 0 | 0 | 1 | 8 | 2 | 11 |
210 | Liquid Purification or Separation | 2 | 2 | 3 | 1 | 2 | 10 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 0 | 0 | 3 | 6 | 1 | 10 |
062 | Refrigeration | 0 | 2 | 2 | 3 | 2 | 9 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 0 | 0 | 3 | 1 | 5 | 9 |
423 | Chemistry of Inorganic Compounds | 2 | 4 | 0 | 0 | 3 | 9 |
436 | Chemistry: Analytical and Immunological Testing | 2 | 0 | 1 | 3 | 3 | 9 |
250 | Radiant Energy | 2 | 1 | 1 | 2 | 2 | 8 |
361 | Electricity: Electrical Systems and Devices | 1 | 0 | 0 | 4 | 3 | 8 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 1 | 1 | 2 | 2 | 2 | 8 |
060 | Power Plants | 1 | 1 | 3 | 0 | 2 | 7 |
123 | Internal-Combustion Engines | 0 | 0 | 1 | 2 | 4 | 7 |
241 | Solid Material Comminution or Disintegration | 2 | 0 | 3 | 0 | 2 | 7 |
252 | Compositions | 0 | 1 | 2 | 3 | 1 | 7 |
324 | Electricity: Measuring and Testing | 0 | 2 | 2 | 0 | 3 | 7 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 0 | 0 | 3 | 3 | 1 | 7 |
372 | Coherent Light Generators | 0 | 1 | 2 | 2 | 2 | 7 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 2 | 0 | 4 | 0 | 0 | 6 |
359 | Optics: Systems (Including Communication) and Elements | 2 | 0 | 1 | 1 | 2 | 6 |
378 | X-Ray or Gamma Ray Systems or Devices | 2 | 1 | 2 | 0 | 1 | 6 |
431 | Combustion | 0 | 0 | 0 | 0 | 6 | 6 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 0 | 2 | 3 | 1 | 0 | 6 |
065 | Glass Manufacturing | 1 | 0 | 0 | 2 | 2 | 5 |
072 | Metal Deforming | 2 | 0 | 1 | 0 | 2 | 5 |
148 | Metal Treatment | 2 | 0 | 1 | 0 | 2 | 5 |
340 | Communications: Electrical | 2 | 0 | 1 | 2 | 0 | 5 |
343 | Communications: Radio Wave Antennas | 1 | 2 | 0 | 1 | 1 | 5 |
365 | Static Information Storage and Retrieval | 0 | 3 | 1 | 1 | 0 | 5 |
585 | Chemistry of Hydrocarbon Compounds | 1 | 0 | 2 | 1 | 1 | 5 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 1 | 2 | 0 | 1 | 0 | 4 |
169 | Fire Extinguishers | 0 | 0 | 0 | 2 | 2 | 4 |
175 | Boring or Penetrating the Earth | 2 | 1 | 0 | 0 | 1 | 4 |
266 | Metallurgical Apparatus | 0 | 0 | 0 | 3 | 1 | 4 |
349 | Liquid Crystal Cells, Elements and Systems | 0 | 1 | 3 | 0 | 0 | 4 |
392 | Electric Resistance Heating Devices | 0 | 3 | 0 | 0 | 1 | 4 |
415 | Rotary Kinetic Fluid Motors or Pumps | 2 | 0 | 1 | 0 | 1 | 4 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 0 | 0 | 2 | 0 | 2 | 4 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 0 | 0 | 0 | 3 | 1 | 4 |
501 | Compositions: Ceramic | 1 | 0 | 1 | 1 | 1 | 4 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 1 | 2 | 1 | 0 | 4 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 0 | 2 | 1 | 1 | 0 | 4 |
029 | Metal Working | 0 | 0 | 0 | 2 | 1 | 3 |
106 | Compositions: Coating or Plastic | 0 | 0 | 2 | 0 | 1 | 3 |
149 | Explosive and Thermic Compositions or Charges | 0 | 0 | 1 | 0 | 2 | 3 |
208 | Mineral Oils: Processes and Products | 0 | 1 | 2 | 0 | 0 | 3 |
220 | Receptacles | 0 | 0 | 0 | 1 | 2 | 3 |
366 | Agitating (e.g., of articles and materials) | 1 | 0 | 1 | 0 | 1 | 3 |
375 | Pulse or Digital Communications | 0 | 0 | 0 | 2 | 1 | 3 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 0 | 0 | 0 | 3 | 0 | 3 |
417 | Pumps | 1 | 0 | 1 | 0 | 1 | 3 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 1 | 1 | 0 | 1 | 3 |
604 | Surgery (Medicators and Receptors) | 2 | 0 | 0 | 1 | 0 | 3 |
040 | Card, Picture, or Sign Exhibiting | 1 | 0 | 0 | 0 | 1 | 2 |
074 | Machine Element or Mechanism | 2 | 0 | 0 | 0 | 0 | 2 |
082 | Turning (e.g., for metal working) | 1 | 0 | 1 | 0 | 0 | 2 |
096 | Gas Separation: Apparatus | 1 | 1 | 0 | 0 | 0 | 2 |
110 | Furnaces | 0 | 0 | 1 | 1 | 0 | 2 |
114 | Ships | 0 | 1 | 0 | 0 | 1 | 2 |
118 | Coating Apparatus | 0 | 2 | 0 | 0 | 0 | 2 |
124 | Mechanical Guns and Projectors | 0 | 1 | 1 | 0 | 0 | 2 |
134 | Cleaning and Liquid Contact with Solids | 0 | 0 | 0 | 2 | 0 | 2 |
164 | Metal Founding | 0 | 0 | 1 | 1 | 0 | 2 |
165 | Heat Exchange | 0 | 0 | 0 | 2 | 0 | 2 |
180 | Motor Vehicles | 1 | 0 | 1 | 0 | 0 | 2 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 1 | 0 | 0 | 0 | 1 | 2 |
273 | Amusement Devices: Games | 1 | 0 | 1 | 0 | 0 | 2 |
277 | Seal for a Joint or Juncture | 0 | 0 | 1 | 1 | 0 | 2 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 0 | 0 | 1 | 0 | 1 | 2 |
347 | Incremental Printing of Symbolic Information | 0 | 1 | 0 | 0 | 1 | 2 |
348 | Television | 0 | 0 | 1 | 0 | 1 | 2 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 0 | 0 | 1 | 0 | 1 | 2 |
369 | Dynamic Information Storage or Retrieval | 0 | 0 | 0 | 1 | 1 | 2 |
381 | Electrical Audio Signal Processing Systems and Devices | 1 | 0 | 0 | 1 | 0 | 2 |
382 | Image Analysis | 0 | 0 | 1 | 1 | 0 | 2 |
405 | Hydraulic and Earth Engineering | 1 | 0 | 1 | 0 | 0 | 2 |
418 | Rotary Expansible Chamber Devices | 0 | 1 | 1 | 0 | 0 | 2 |
454 | Ventilation | 1 | 0 | 1 | 0 | 0 | 2 |
455 | Telecommunications | 1 | 0 | 0 | 1 | 0 | 2 |
463 | Amusement Devices: Games | 0 | 0 | 1 | 0 | 1 | 2 |
475 | Planetary Gear Transmission Systems or Components | 0 | 1 | 1 | 0 | 0 | 2 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 2 | 0 | 0 | 2 |
588 | Hazardous or Toxic Waste Destruction or Containment | 0 | 0 | 1 | 0 | 1 | 2 |
601 | Surgery: Kinesitherapy | 0 | 0 | 1 | 0 | 1 | 2 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 1 | 1 | 2 |
714 | Error Detection/Correction and Fault Detection/Recovery | 0 | 1 | 0 | 1 | 0 | 2 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 0 | 0 | 1 | 0 | 0 | 1 |
033 | Geometrical Instruments | 0 | 0 | 0 | 0 | 1 | 1 |
037 | Excavating | 1 | 0 | 0 | 0 | 0 | 1 |
043 | Fishing, Trapping, and Vermin Destroying | 0 | 0 | 0 | 1 | 0 | 1 |
051 | Abrasive Tool Making Process, Material, or Composition | 0 | 0 | 0 | 1 | 0 | 1 |
055 | Gas Separation | 1 | 0 | 0 | 0 | 0 | 1 |
070 | Locks | 0 | 0 | 1 | 0 | 0 | 1 |
083 | Cutting | 0 | 0 | 1 | 0 | 0 | 1 |
091 | Motors: Expansible Chamber Type | 0 | 0 | 0 | 1 | 0 | 1 |
095 | Gas Separation: Processes | 0 | 1 | 0 | 0 | 0 | 1 |
104 | Railways | 0 | 0 | 1 | 0 | 0 | 1 |
112 | Sewing | 0 | 0 | 1 | 0 | 0 | 1 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 0 | 1 | 0 | 0 | 0 | 1 |
126 | Stoves and Furnaces | 0 | 0 | 0 | 0 | 1 | 1 |
131 | Tobacco | 0 | 1 | 0 | 0 | 0 | 1 |
144 | Woodworking | 0 | 0 | 1 | 0 | 0 | 1 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 0 | 1 | 0 | 0 | 0 | 1 |
162 | Paper Making and Fiber Liberation | 0 | 0 | 0 | 1 | 0 | 1 |
173 | Tool Driving or Impacting | 1 | 0 | 0 | 0 | 0 | 1 |
192 | Clutches and Power-Stop Control | 0 | 0 | 0 | 1 | 0 | 1 |
196 | Mineral Oils: Apparatus | 0 | 0 | 0 | 0 | 1 | 1 |
203 | Distillation: Processes, Separatory | 0 | 0 | 0 | 1 | 0 | 1 |
209 | Classifying, Separating, and Assorting Solids | 0 | 0 | 0 | 0 | 1 | 1 |
222 | Dispensing (apparatus and process) | 0 | 0 | 0 | 1 | 0 | 1 |
225 | Severing by Tearing or Breaking | 0 | 1 | 0 | 0 | 0 | 1 |
227 | Elongated-Member-Driving Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
238 | Railways: Surface Track | 0 | 0 | 0 | 0 | 1 | 1 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 1 | 0 | 0 | 0 | 1 |
261 | Gas and Liquid Contact Apparatus | 0 | 1 | 0 | 0 | 0 | 1 |
285 | Pipe Joints or Couplings | 1 | 0 | 0 | 0 | 0 | 1 |
292 | Closure Fasteners | 0 | 0 | 0 | 0 | 1 | 1 |
295 | Railway Wheels and Axles | 0 | 0 | 0 | 1 | 0 | 1 |
299 | Mining or In Situ Disintegration of Hard Material | 0 | 1 | 0 | 0 | 0 | 1 |
307 | Electrical Transmission or Interconnection Systems | 0 | 0 | 0 | 0 | 1 | 1 |
318 | Electricity: Motive Power Systems | 1 | 0 | 0 | 0 | 0 | 1 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 0 | 1 | 0 | 0 | 0 | 1 |
326 | Electronic Digital Logic Circuitry | 0 | 0 | 1 | 0 | 0 | 1 |
331 | Oscillators | 0 | 0 | 0 | 1 | 0 | 1 |
333 | Wave Transmission Lines and Networks | 0 | 0 | 0 | 0 | 1 | 1 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 0 | 0 | 0 | 1 | 0 | 1 |
358 | Facsimile and Static Presentation Processing | 0 | 0 | 1 | 0 | 0 | 1 |
380 | Cryptography | 0 | 0 | 0 | 0 | 1 | 1 |
384 | Bearings | 0 | 0 | 1 | 0 | 0 | 1 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 0 | 0 | 0 | 0 | 1 | 1 |
419 | Powder Metallurgy Processes | 1 | 0 | 0 | 0 | 0 | 1 |
420 | Alloys or Metallic Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
426 | Food or Edible Material: Processes, Compositions, and Products | 1 | 0 | 0 | 0 | 0 | 1 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 1 | 0 | 0 | 0 | 0 | 1 |
451 | Abrading | 0 | 0 | 1 | 0 | 0 | 1 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 1 | 0 | 0 | 0 | 0 | 1 |
482 | Exercise Devices | 0 | 0 | 1 | 0 | 0 | 1 |
607 | Surgery: Light, Thermal, and Electrical Application | 0 | 0 | 0 | 0 | 1 | 1 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 0 | 0 | 0 | 0 | 1 | 1 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 0 | 1 | 0 | 0 | 0 | 1 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 0 | 0 | 1 | 0 | 0 | 1 |
ALL | ALL CLASSES | 116 | 111 | 189 | 181 | 183 | 780 |
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/