U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 32 | 44 | 48 | 27 | 21 | 172 |
532 | Organic Compounds (includes Classes 532-570) | 6 | 15 | 31 | 30 | 5 | 87 |
428 | Stock Material or Miscellaneous Articles | 13 | 3 | 4 | 3 | 5 | 28 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 2 | 4 | 1 | 4 | 7 | 18 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 1 | 3 | 4 | 2 | 5 | 15 |
252 | Compositions | 1 | 1 | 2 | 3 | 6 | 13 |
299 | Mining or In Situ Disintegration of Hard Material | 3 | 2 | 2 | 3 | 2 | 12 |
128 | Surgery (includes Class 600) | 1 | 0 | 4 | 1 | 5 | 11 |
414 | Material or Article Handling | 0 | 2 | 3 | 5 | 1 | 11 |
137 | Fluid Handling | 0 | 3 | 3 | 3 | 1 | 10 |
072 | Metal Deforming | 0 | 6 | 1 | 1 | 1 | 9 |
198 | Conveyors: Power-Driven | 0 | 2 | 1 | 3 | 3 | 9 |
210 | Liquid Purification or Separation | 0 | 2 | 1 | 2 | 4 | 9 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 1 | 2 | 5 | 1 | 0 | 9 |
002 | Apparel | 1 | 3 | 2 | 2 | 0 | 8 |
052 | Static Structures (e.g., Buildings) | 1 | 2 | 2 | 0 | 3 | 8 |
313 | Electric Lamp and Discharge Devices | 3 | 1 | 2 | 1 | 1 | 8 |
427 | Coating Processes | 2 | 3 | 1 | 1 | 1 | 8 |
029 | Metal Working | 4 | 1 | 0 | 1 | 1 | 7 |
381 | Electrical Audio Signal Processing Systems and Devices | 0 | 1 | 6 | 0 | 0 | 7 |
280 | Land Vehicles | 1 | 1 | 0 | 2 | 2 | 6 |
073 | Measuring and Testing | 1 | 1 | 0 | 1 | 2 | 5 |
081 | Tools | 0 | 0 | 1 | 3 | 1 | 5 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 0 | 2 | 2 | 0 | 1 | 5 |
182 | Fire Escape, Ladder, or Scaffold | 1 | 0 | 0 | 0 | 4 | 5 |
221 | Article Dispensing | 2 | 0 | 1 | 0 | 2 | 5 |
250 | Radiant Energy | 2 | 1 | 1 | 1 | 0 | 5 |
362 | Illumination | 2 | 1 | 0 | 2 | 0 | 5 |
423 | Chemistry of Inorganic Compounds | 1 | 1 | 2 | 1 | 0 | 5 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 0 | 1 | 2 | 0 | 1 | 4 |
119 | Animal Husbandry | 0 | 1 | 2 | 0 | 1 | 4 |
144 | Woodworking | 0 | 1 | 1 | 0 | 2 | 4 |
148 | Metal Treatment | 0 | 1 | 1 | 1 | 1 | 4 |
174 | Electricity: Conductors and Insulators | 1 | 0 | 1 | 0 | 2 | 4 |
220 | Receptacles | 0 | 1 | 3 | 0 | 0 | 4 |
222 | Dispensing (apparatus and process) | 0 | 0 | 1 | 2 | 1 | 4 |
725 | Interactive Video Distribution Systems | 0 | 0 | 2 | 0 | 2 | 4 |
005 | Beds | 1 | 0 | 1 | 0 | 1 | 3 |
060 | Power Plants | 0 | 0 | 2 | 0 | 1 | 3 |
106 | Compositions: Coating or Plastic | 1 | 1 | 0 | 0 | 1 | 3 |
114 | Ships | 0 | 1 | 0 | 0 | 2 | 3 |
134 | Cleaning and Liquid Contact with Solids | 0 | 0 | 2 | 1 | 0 | 3 |
160 | Flexible or Portable Closure, Partition, or Panel | 2 | 1 | 0 | 0 | 0 | 3 |
194 | Check-Actuated Control Mechanisms | 0 | 1 | 1 | 0 | 1 | 3 |
204 | Chemistry: Electrical and Wave Energy | 0 | 1 | 1 | 0 | 1 | 3 |
206 | Special Receptacle or Package | 1 | 0 | 2 | 0 | 0 | 3 |
273 | Amusement Devices: Games | 0 | 1 | 1 | 0 | 1 | 3 |
294 | Handling: Hand and Hoist-Line Implements | 1 | 1 | 0 | 1 | 0 | 3 |
296 | Land Vehicles: Bodies and Tops | 0 | 1 | 1 | 0 | 1 | 3 |
340 | Communications: Electrical | 1 | 0 | 0 | 1 | 1 | 3 |
370 | Multiplex Communications | 0 | 0 | 0 | 1 | 2 | 3 |
413 | Sheet Metal Container Making | 0 | 2 | 1 | 0 | 0 | 3 |
420 | Alloys or Metallic Compositions | 0 | 0 | 0 | 2 | 1 | 3 |
431 | Combustion | 0 | 1 | 1 | 0 | 1 | 3 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 1 | 1 | 1 | 0 | 3 |
482 | Exercise Devices | 1 | 1 | 0 | 0 | 1 | 3 |
508 | Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions | 0 | 0 | 2 | 0 | 1 | 3 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 0 | 0 | 1 | 0 | 1 | 2 |
015 | Brushing, Scrubbing, and General Cleaning | 0 | 0 | 1 | 1 | 0 | 2 |
024 | Buckles, Buttons, Clasps, Etc. | 0 | 2 | 0 | 0 | 0 | 2 |
030 | Cutlery | 1 | 0 | 0 | 0 | 1 | 2 |
033 | Geometrical Instruments | 0 | 1 | 0 | 1 | 0 | 2 |
036 | Boots, Shoes, and Leggings | 1 | 0 | 0 | 1 | 0 | 2 |
037 | Excavating | 0 | 1 | 1 | 0 | 0 | 2 |
042 | Firearms | 0 | 0 | 1 | 0 | 1 | 2 |
053 | Package Making | 1 | 0 | 1 | 0 | 0 | 2 |
062 | Refrigeration | 0 | 1 | 1 | 0 | 0 | 2 |
070 | Locks | 0 | 0 | 1 | 1 | 0 | 2 |
084 | Music | 1 | 1 | 0 | 0 | 0 | 2 |
095 | Gas Separation: Processes | 0 | 0 | 1 | 0 | 1 | 2 |
118 | Coating Apparatus | 0 | 2 | 0 | 0 | 0 | 2 |
124 | Mechanical Guns and Projectors | 0 | 0 | 0 | 0 | 2 | 2 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 0 | 0 | 0 | 0 | 2 | 2 |
152 | Resilient Tires and Wheels | 1 | 0 | 1 | 0 | 0 | 2 |
172 | Earth Working | 0 | 1 | 1 | 0 | 0 | 2 |
175 | Boring or Penetrating the Earth | 0 | 0 | 2 | 0 | 0 | 2 |
209 | Classifying, Separating, and Assorting Solids | 1 | 0 | 0 | 0 | 1 | 2 |
211 | Supports: Racks | 0 | 1 | 1 | 0 | 0 | 2 |
219 | Electric Heating | 1 | 0 | 0 | 0 | 1 | 2 |
224 | Package and Article Carriers | 0 | 0 | 0 | 1 | 1 | 2 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 0 | 0 | 0 | 2 | 2 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 0 | 0 | 2 | 0 | 2 |
256 | Fences | 0 | 0 | 1 | 0 | 1 | 2 |
261 | Gas and Liquid Contact Apparatus | 0 | 0 | 0 | 2 | 0 | 2 |
312 | Supports: Cabinet Structure | 1 | 0 | 0 | 1 | 0 | 2 |
348 | Television | 0 | 1 | 0 | 1 | 0 | 2 |
361 | Electricity: Electrical Systems and Devices | 2 | 0 | 0 | 0 | 0 | 2 |
379 | Telephonic Communications | 0 | 2 | 0 | 0 | 0 | 2 |
404 | Road Structure, Process, or Apparatus | 0 | 0 | 1 | 0 | 1 | 2 |
405 | Hydraulic and Earth Engineering | 1 | 1 | 0 | 0 | 0 | 2 |
410 | Freight Accommodation On Freight Carrier | 0 | 1 | 0 | 0 | 1 | 2 |
446 | Amusement Devices: Toys | 0 | 0 | 0 | 2 | 0 | 2 |
455 | Telecommunications | 0 | 0 | 1 | 1 | 0 | 2 |
473 | Games Using Tangible Projectile | 0 | 0 | 0 | 1 | 1 | 2 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 0 | 0 | 2 | 2 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 0 | 0 | 1 | 1 | 0 | 2 |
588 | Hazardous or Toxic Waste Destruction or Containment | 0 | 1 | 1 | 0 | 0 | 2 |
602 | Surgery: Splint, Brace, or Bandage | 0 | 0 | 1 | 0 | 1 | 2 |
606 | Surgery (instruments) | 1 | 0 | 1 | 0 | 0 | 2 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 1 | 1 | 0 | 0 | 0 | 2 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 0 | 0 | 0 | 1 | 1 | 2 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 0 | 1 | 0 | 0 | 1 |
016 | Miscellaneous Hardware | 1 | 0 | 0 | 0 | 0 | 1 |
027 | Undertaking | 1 | 0 | 0 | 0 | 0 | 1 |
034 | Drying and Gas or Vapor Contact with Solids | 1 | 0 | 0 | 0 | 0 | 1 |
040 | Card, Picture, or Sign Exhibiting | 0 | 0 | 1 | 0 | 0 | 1 |
044 | Fuel and Related Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
047 | Plant Husbandry | 0 | 0 | 0 | 1 | 0 | 1 |
049 | Movable or Removable Closures | 0 | 0 | 0 | 0 | 1 | 1 |
055 | Gas Separation | 0 | 0 | 0 | 0 | 1 | 1 |
057 | Textiles: Spinning, Twisting, and Twining | 0 | 0 | 0 | 1 | 0 | 1 |
063 | Jewelry | 0 | 1 | 0 | 0 | 0 | 1 |
065 | Glass Manufacturing | 0 | 0 | 0 | 0 | 1 | 1 |
076 | Metal Tools and Implements, Making | 0 | 0 | 0 | 0 | 1 | 1 |
086 | Ammunition and Explosive-Charge Making | 0 | 0 | 1 | 0 | 0 | 1 |
089 | Ordnance | 0 | 0 | 1 | 0 | 0 | 1 |
099 | Foods and Beverages: Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
116 | Signals and Indicators | 0 | 0 | 0 | 1 | 0 | 1 |
123 | Internal-Combustion Engines | 1 | 0 | 0 | 0 | 0 | 1 |
135 | Tent, Canopy, Umbrella, or Cane | 0 | 0 | 0 | 1 | 0 | 1 |
136 | Batteries: Thermoelectric and Photoelectric | 0 | 0 | 0 | 0 | 1 | 1 |
157 | Wheelwright Machines | 0 | 0 | 0 | 1 | 0 | 1 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 1 | 0 | 0 | 0 | 0 | 1 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
208 | Mineral Oils: Processes and Products | 1 | 0 | 0 | 0 | 0 | 1 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 0 | 0 | 0 | 1 | 0 | 1 |
238 | Railways: Surface Track | 0 | 0 | 0 | 1 | 0 | 1 |
251 | Valves and Valve Actuation | 1 | 0 | 0 | 0 | 0 | 1 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 0 | 0 | 1 | 0 | 0 | 1 |
267 | Spring Devices | 1 | 0 | 0 | 0 | 0 | 1 |
277 | Seal for a Joint or Juncture | 0 | 0 | 0 | 0 | 1 | 1 |
301 | Land Vehicles: Wheels and Axles | 0 | 0 | 0 | 1 | 0 | 1 |
307 | Electrical Transmission or Interconnection Systems | 0 | 0 | 0 | 1 | 0 | 1 |
324 | Electricity: Measuring and Testing | 0 | 0 | 0 | 1 | 0 | 1 |
330 | Amplifiers | 0 | 0 | 0 | 0 | 1 | 1 |
343 | Communications: Radio Wave Antennas | 0 | 1 | 0 | 0 | 0 | 1 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 0 | 0 | 1 | 0 | 0 | 1 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 0 | 1 | 0 | 0 | 0 | 1 |
366 | Agitating (e.g., of articles and materials) | 1 | 0 | 0 | 0 | 0 | 1 |
400 | Typewriting Machines | 1 | 0 | 0 | 0 | 0 | 1 |
401 | Coating Implements with Material Supply | 0 | 0 | 0 | 1 | 0 | 1 |
403 | Joints and Connections | 0 | 1 | 0 | 0 | 0 | 1 |
417 | Pumps | 0 | 0 | 1 | 0 | 0 | 1 |
419 | Powder Metallurgy Processes | 0 | 0 | 0 | 0 | 1 | 1 |
426 | Food or Edible Material: Processes, Compositions, and Products | 0 | 0 | 0 | 1 | 0 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 0 | 0 | 0 | 1 | 1 |
434 | Education and Demonstration | 0 | 0 | 0 | 1 | 0 | 1 |
436 | Chemistry: Analytical and Immunological Testing | 0 | 0 | 0 | 1 | 0 | 1 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 0 | 1 | 0 | 0 | 0 | 1 |
472 | Amusement Devices | 0 | 0 | 1 | 0 | 0 | 1 |
475 | Planetary Gear Transmission Systems or Components | 0 | 0 | 0 | 0 | 1 | 1 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 0 | 0 | 0 | 1 | 0 | 1 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 0 | 0 | 0 | 0 | 1 | 1 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 0 | 0 | 0 | 1 | 0 | 1 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 0 | 0 | 1 | 0 | 0 | 1 |
706 | DP: Artificial Intelligence (Data Processing) | 0 | 0 | 0 | 0 | 1 | 1 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 0 | 1 | 1 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 0 | 0 | 1 | 0 | 0 | 1 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 0 | 1 | 0 | 1 |
ALL | ALL CLASSES | 114 | 147 | 189 | 149 | 144 | 743 |
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/