U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
062 | Refrigeration | 1 | 1 | 1 | 1 | 8 | 12 |
220 | Receptacles | 2 | 2 | 1 | 3 | 3 | 11 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 2 | 0 | 1 | 3 | 4 | 10 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 1 | 3 | 1 | 0 | 4 | 9 |
417 | Pumps | 0 | 1 | 2 | 3 | 2 | 8 |
428 | Stock Material or Miscellaneous Articles | 1 | 0 | 2 | 2 | 3 | 8 |
604 | Surgery (Medicators and Receptors) | 2 | 1 | 1 | 1 | 3 | 8 |
128 | Surgery (includes Class 600) | 4 | 0 | 1 | 1 | 1 | 7 |
210 | Liquid Purification or Separation | 1 | 1 | 1 | 4 | 0 | 7 |
285 | Pipe Joints or Couplings | 3 | 0 | 1 | 3 | 0 | 7 |
073 | Measuring and Testing | 2 | 1 | 1 | 0 | 2 | 6 |
134 | Cleaning and Liquid Contact with Solids | 1 | 2 | 1 | 2 | 0 | 6 |
137 | Fluid Handling | 1 | 1 | 0 | 2 | 2 | 6 |
138 | Pipes and Tubular Conduits | 1 | 2 | 2 | 1 | 0 | 6 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 0 | 1 | 1 | 1 | 3 | 6 |
405 | Hydraulic and Earth Engineering | 0 | 1 | 1 | 1 | 3 | 6 |
042 | Firearms | 0 | 1 | 1 | 2 | 1 | 5 |
052 | Static Structures (e.g., Buildings) | 0 | 0 | 0 | 3 | 2 | 5 |
206 | Special Receptacle or Package | 1 | 2 | 0 | 1 | 1 | 5 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 1 | 3 | 1 | 5 |
340 | Communications: Electrical | 3 | 0 | 1 | 0 | 1 | 5 |
359 | Optics: Systems (Including Communication) and Elements | 0 | 0 | 2 | 2 | 1 | 5 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 1 | 1 | 0 | 3 | 0 | 5 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 2 | 2 | 0 | 1 | 5 |
439 | Electrical Connectors | 3 | 2 | 0 | 0 | 0 | 5 |
606 | Surgery (instruments) | 1 | 1 | 3 | 0 | 0 | 5 |
029 | Metal Working | 1 | 0 | 0 | 1 | 2 | 4 |
074 | Machine Element or Mechanism | 1 | 0 | 0 | 1 | 2 | 4 |
099 | Foods and Beverages: Apparatus | 0 | 1 | 3 | 0 | 0 | 4 |
106 | Compositions: Coating or Plastic | 1 | 0 | 2 | 1 | 0 | 4 |
532 | Organic Compounds (includes Classes 532-570) | 0 | 1 | 1 | 0 | 2 | 4 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 0 | 1 | 1 | 1 | 1 | 4 |
036 | Boots, Shoes, and Leggings | 1 | 0 | 0 | 1 | 1 | 3 |
072 | Metal Deforming | 2 | 0 | 0 | 1 | 0 | 3 |
092 | Expansible Chamber Devices | 1 | 1 | 1 | 0 | 0 | 3 |
114 | Ships | 1 | 0 | 0 | 2 | 0 | 3 |
123 | Internal-Combustion Engines | 1 | 1 | 0 | 0 | 1 | 3 |
127 | Sugar, Starch, and Carbohydrates | 0 | 0 | 0 | 1 | 2 | 3 |
139 | Textiles: Weaving | 1 | 1 | 0 | 1 | 0 | 3 |
208 | Mineral Oils: Processes and Products | 0 | 1 | 0 | 0 | 2 | 3 |
215 | Bottles and Jars | 1 | 0 | 2 | 0 | 0 | 3 |
222 | Dispensing (apparatus and process) | 0 | 1 | 1 | 1 | 0 | 3 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 0 | 0 | 1 | 2 | 3 |
277 | Seal for a Joint or Juncture | 2 | 0 | 1 | 0 | 0 | 3 |
385 | Optical Waveguides | 0 | 1 | 1 | 1 | 0 | 3 |
473 | Games Using Tangible Projectile | 0 | 0 | 1 | 1 | 1 | 3 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 1 | 0 | 1 | 0 | 1 | 3 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 0 | 0 | 0 | 2 | 1 | 3 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 0 | 0 | 0 | 1 | 1 | 2 |
033 | Geometrical Instruments | 0 | 1 | 0 | 1 | 0 | 2 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 0 | 0 | 0 | 2 | 2 |
048 | Gas: Heating and Illuminating | 1 | 0 | 1 | 0 | 0 | 2 |
060 | Power Plants | 0 | 1 | 0 | 0 | 1 | 2 |
070 | Locks | 0 | 2 | 0 | 0 | 0 | 2 |
104 | Railways | 0 | 0 | 1 | 0 | 1 | 2 |
175 | Boring or Penetrating the Earth | 1 | 0 | 1 | 0 | 0 | 2 |
181 | Acoustics | 0 | 0 | 0 | 2 | 0 | 2 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 1 | 0 | 1 | 0 | 0 | 2 |
188 | Brakes | 2 | 0 | 0 | 0 | 0 | 2 |
219 | Electric Heating | 1 | 0 | 0 | 0 | 1 | 2 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 1 | 1 | 0 | 0 | 2 |
292 | Closure Fasteners | 1 | 0 | 1 | 0 | 0 | 2 |
297 | Chairs and Seats | 0 | 0 | 2 | 0 | 0 | 2 |
318 | Electricity: Motive Power Systems | 1 | 0 | 1 | 0 | 0 | 2 |
362 | Illumination | 0 | 1 | 1 | 0 | 0 | 2 |
382 | Image Analysis | 0 | 1 | 0 | 1 | 0 | 2 |
403 | Joints and Connections | 0 | 0 | 2 | 0 | 0 | 2 |
427 | Coating Processes | 0 | 0 | 1 | 0 | 1 | 2 |
431 | Combustion | 1 | 1 | 0 | 0 | 0 | 2 |
482 | Exercise Devices | 0 | 2 | 0 | 0 | 0 | 2 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 1 | 0 | 1 | 2 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 0 | 0 | 1 | 0 | 1 | 2 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 0 | 0 | 2 | 2 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 1 | 0 | 0 | 0 | 1 |
005 | Beds | 0 | 0 | 0 | 1 | 0 | 1 |
012 | Boot and Shoe Making | 0 | 0 | 0 | 1 | 0 | 1 |
015 | Brushing, Scrubbing, and General Cleaning | 0 | 0 | 0 | 1 | 0 | 1 |
030 | Cutlery | 0 | 0 | 0 | 1 | 0 | 1 |
037 | Excavating | 0 | 0 | 0 | 1 | 0 | 1 |
047 | Plant Husbandry | 0 | 0 | 0 | 1 | 0 | 1 |
053 | Package Making | 0 | 0 | 0 | 0 | 1 | 1 |
057 | Textiles: Spinning, Twisting, and Twining | 0 | 0 | 1 | 0 | 0 | 1 |
065 | Glass Manufacturing | 0 | 1 | 0 | 0 | 0 | 1 |
082 | Turning (e.g., for metal working) | 0 | 0 | 0 | 1 | 0 | 1 |
084 | Music | 1 | 0 | 0 | 0 | 0 | 1 |
095 | Gas Separation: Processes | 0 | 0 | 0 | 0 | 1 | 1 |
102 | Ammunition and Explosives | 0 | 0 | 0 | 1 | 0 | 1 |
118 | Coating Apparatus | 0 | 1 | 0 | 0 | 0 | 1 |
119 | Animal Husbandry | 0 | 1 | 0 | 0 | 0 | 1 |
126 | Stoves and Furnaces | 0 | 1 | 0 | 0 | 0 | 1 |
132 | Toilet | 0 | 0 | 1 | 0 | 0 | 1 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 0 | 0 | 0 | 1 | 0 | 1 |
144 | Woodworking | 0 | 0 | 0 | 1 | 0 | 1 |
148 | Metal Treatment | 0 | 0 | 0 | 1 | 0 | 1 |
162 | Paper Making and Fiber Liberation | 0 | 0 | 1 | 0 | 0 | 1 |
165 | Heat Exchange | 0 | 0 | 0 | 0 | 1 | 1 |
180 | Motor Vehicles | 0 | 0 | 0 | 1 | 0 | 1 |
184 | Lubrication | 0 | 0 | 1 | 0 | 0 | 1 |
192 | Clutches and Power-Stop Control | 0 | 1 | 0 | 0 | 0 | 1 |
194 | Check-Actuated Control Mechanisms | 0 | 0 | 0 | 0 | 1 | 1 |
198 | Conveyors: Power-Driven | 0 | 0 | 0 | 1 | 0 | 1 |
200 | Electricity: Circuit Makers and Breakers | 0 | 1 | 0 | 0 | 0 | 1 |
201 | Distillation: Processes, Thermolytic | 0 | 0 | 1 | 0 | 0 | 1 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
221 | Article Dispensing | 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 |
238 | Railways: Surface Track | 1 | 0 | 0 | 0 | 0 | 1 |
241 | Solid Material Comminution or Disintegration | 0 | 0 | 1 | 0 | 0 | 1 |
244 | Aeronautics | 0 | 0 | 0 | 0 | 1 | 1 |
251 | Valves and Valve Actuation | 0 | 0 | 0 | 1 | 0 | 1 |
261 | Gas and Liquid Contact Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 0 | 0 | 1 | 0 | 1 |
266 | Metallurgical Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
269 | Work Holders | 1 | 0 | 0 | 0 | 0 | 1 |
294 | Handling: Hand and Hoist-Line Implements | 0 | 0 | 0 | 0 | 1 | 1 |
299 | Mining or In Situ Disintegration of Hard Material | 0 | 0 | 0 | 0 | 1 | 1 |
300 | Brush, Broom, and Mop Making | 0 | 1 | 0 | 0 | 0 | 1 |
310 | Electrical Generator or Motor Structure | 0 | 0 | 0 | 1 | 0 | 1 |
315 | Electric Lamp and Discharge Devices: Systems | 1 | 0 | 0 | 0 | 0 | 1 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 0 | 0 | 0 | 1 | 0 | 1 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 0 | 0 | 0 | 1 | 0 | 1 |
341 | Coded Data Generation or Conversion | 0 | 0 | 1 | 0 | 0 | 1 |
343 | Communications: Radio Wave Antennas | 0 | 0 | 0 | 0 | 1 | 1 |
348 | Television | 0 | 1 | 0 | 0 | 0 | 1 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 0 | 0 | 0 | 0 | 1 | 1 |
353 | Optics: Image Projectors | 0 | 1 | 0 | 0 | 0 | 1 |
356 | Optics: Measuring and Testing | 0 | 0 | 0 | 1 | 0 | 1 |
361 | Electricity: Electrical Systems and Devices | 0 | 1 | 0 | 0 | 0 | 1 |
368 | Horology: Time Measuring Systems or Devices | 0 | 0 | 0 | 1 | 0 | 1 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 0 | 0 | 0 | 0 | 1 | 1 |
383 | Flexible Bags | 0 | 0 | 0 | 1 | 0 | 1 |
384 | Bearings | 0 | 0 | 1 | 0 | 0 | 1 |
392 | Electric Resistance Heating Devices | 0 | 0 | 0 | 0 | 1 | 1 |
399 | Electrophotography | 0 | 0 | 0 | 0 | 1 | 1 |
401 | Coating Implements with Material Supply | 0 | 0 | 0 | 0 | 1 | 1 |
404 | Road Structure, Process, or Apparatus | 0 | 0 | 0 | 1 | 0 | 1 |
408 | Cutting by Use of Rotating Axially Moving Tool | 0 | 0 | 0 | 1 | 0 | 1 |
410 | Freight Accommodation On Freight Carrier | 1 | 0 | 0 | 0 | 0 | 1 |
413 | Sheet Metal Container Making | 0 | 0 | 1 | 0 | 0 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 0 | 0 | 1 | 1 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 0 | 1 | 0 | 0 | 0 | 1 |
418 | Rotary Expansible Chamber Devices | 0 | 1 | 0 | 0 | 0 | 1 |
423 | Chemistry of Inorganic Compounds | 0 | 0 | 0 | 0 | 1 | 1 |
426 | Food or Edible Material: Processes, Compositions, and Products | 0 | 0 | 1 | 0 | 0 | 1 |
432 | Heating | 0 | 0 | 0 | 0 | 1 | 1 |
433 | Dentistry | 0 | 0 | 0 | 0 | 1 | 1 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 0 | 0 | 0 | 1 | 0 | 1 |
450 | Foundation Garments | 0 | 1 | 0 | 0 | 0 | 1 |
451 | Abrading | 0 | 0 | 0 | 0 | 1 | 1 |
454 | Ventilation | 0 | 0 | 0 | 0 | 1 | 1 |
463 | Amusement Devices: Games | 0 | 0 | 0 | 0 | 1 | 1 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 0 | 1 | 0 | 0 | 0 | 1 |
472 | Amusement Devices | 0 | 0 | 1 | 0 | 0 | 1 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 0 | 1 | 0 | 0 | 0 | 1 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 0 | 0 | 0 | 0 | 1 | 1 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 1 | 0 | 0 | 0 | 0 | 1 |
585 | Chemistry of Hydrocarbon Compounds | 0 | 0 | 1 | 0 | 0 | 1 |
601 | Surgery: Kinesitherapy | 0 | 0 | 0 | 1 | 0 | 1 |
602 | Surgery: Splint, Brace, or Bandage | 0 | 0 | 0 | 1 | 0 | 1 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 0 | 1 | 0 | 0 | 1 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 1 | 0 | 0 | 0 | 0 | 1 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 0 | 0 | 0 | 1 | 0 | 1 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 0 | 1 | 0 | 0 | 1 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 0 | 0 | 1 | 0 | 0 | 1 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 0 | 0 | 1 | 0 | 0 | 1 |
ALL | ALL CLASSES | 63 | 62 | 74 | 91 | 98 | 388 |
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/