U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
365 | Static Information Storage and Retrieval | 0 | 4 | 9 | 10 | 3 | 26 |
297 | Chairs and Seats | 10 | 2 | 5 | 3 | 2 | 22 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 2 | 9 | 11 | 22 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 5 | 5 | 4 | 4 | 3 | 21 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 2 | 1 | 4 | 6 | 8 | 21 |
073 | Measuring and Testing | 2 | 6 | 5 | 5 | 2 | 20 |
210 | Liquid Purification or Separation | 3 | 8 | 3 | 4 | 0 | 18 |
005 | Beds | 7 | 2 | 4 | 0 | 4 | 17 |
455 | Telecommunications | 6 | 5 | 2 | 4 | 0 | 17 |
043 | Fishing, Trapping, and Vermin Destroying | 2 | 2 | 3 | 4 | 4 | 15 |
280 | Land Vehicles | 2 | 1 | 2 | 5 | 4 | 14 |
381 | Electrical Audio Signal Processing Systems and Devices | 4 | 5 | 1 | 0 | 3 | 13 |
029 | Metal Working | 0 | 1 | 2 | 3 | 5 | 11 |
428 | Stock Material or Miscellaneous Articles | 2 | 0 | 2 | 4 | 3 | 11 |
433 | Dentistry | 2 | 2 | 3 | 2 | 2 | 11 |
604 | Surgery (Medicators and Receptors) | 1 | 0 | 3 | 2 | 5 | 11 |
340 | Communications: Electrical | 3 | 2 | 2 | 2 | 1 | 10 |
002 | Apparel | 4 | 2 | 1 | 1 | 1 | 9 |
015 | Brushing, Scrubbing, and General Cleaning | 2 | 1 | 2 | 0 | 4 | 9 |
128 | Surgery (includes Class 600) | 0 | 2 | 2 | 4 | 1 | 9 |
206 | Special Receptacle or Package | 1 | 1 | 3 | 2 | 2 | 9 |
370 | Multiplex Communications | 0 | 1 | 6 | 1 | 1 | 9 |
426 | Food or Edible Material: Processes, Compositions, and Products | 1 | 3 | 4 | 0 | 1 | 9 |
435 | Chemistry: Molecular Biology and Microbiology | 0 | 1 | 0 | 5 | 3 | 9 |
062 | Refrigeration | 0 | 3 | 1 | 0 | 4 | 8 |
198 | Conveyors: Power-Driven | 0 | 1 | 3 | 3 | 1 | 8 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 0 | 3 | 0 | 4 | 1 | 8 |
326 | Electronic Digital Logic Circuitry | 0 | 2 | 1 | 4 | 1 | 8 |
405 | Hydraulic and Earth Engineering | 3 | 3 | 1 | 1 | 0 | 8 |
473 | Games Using Tangible Projectile | 2 | 1 | 0 | 5 | 0 | 8 |
606 | Surgery (instruments) | 4 | 2 | 1 | 0 | 1 | 8 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 1 | 0 | 4 | 1 | 2 | 8 |
042 | Firearms | 0 | 0 | 1 | 4 | 2 | 7 |
099 | Foods and Beverages: Apparatus | 0 | 0 | 4 | 1 | 2 | 7 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 1 | 3 | 1 | 2 | 0 | 7 |
273 | Amusement Devices: Games | 1 | 1 | 2 | 1 | 2 | 7 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 0 | 1 | 3 | 0 | 3 | 7 |
414 | Material or Article Handling | 1 | 1 | 1 | 3 | 1 | 7 |
532 | Organic Compounds (includes Classes 532-570) | 0 | 1 | 3 | 2 | 1 | 7 |
106 | Compositions: Coating or Plastic | 1 | 2 | 0 | 1 | 2 | 6 |
137 | Fluid Handling | 0 | 0 | 2 | 2 | 2 | 6 |
165 | Heat Exchange | 0 | 1 | 2 | 0 | 3 | 6 |
174 | Electricity: Conductors and Insulators | 0 | 1 | 4 | 1 | 0 | 6 |
222 | Dispensing (apparatus and process) | 0 | 1 | 1 | 2 | 2 | 6 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 2 | 0 | 2 | 2 | 6 |
250 | Radiant Energy | 2 | 1 | 1 | 0 | 2 | 6 |
310 | Electrical Generator or Motor Structure | 1 | 2 | 1 | 0 | 2 | 6 |
318 | Electricity: Motive Power Systems | 2 | 0 | 1 | 2 | 1 | 6 |
446 | Amusement Devices: Toys | 0 | 0 | 2 | 2 | 2 | 6 |
052 | Static Structures (e.g., Buildings) | 1 | 1 | 1 | 1 | 1 | 5 |
072 | Metal Deforming | 1 | 2 | 1 | 0 | 1 | 5 |
114 | Ships | 0 | 1 | 2 | 1 | 1 | 5 |
119 | Animal Husbandry | 1 | 1 | 1 | 2 | 0 | 5 |
124 | Mechanical Guns and Projectors | 2 | 2 | 0 | 1 | 0 | 5 |
144 | Woodworking | 0 | 1 | 0 | 2 | 2 | 5 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 2 | 1 | 2 | 0 | 0 | 5 |
219 | Electric Heating | 0 | 1 | 1 | 3 | 0 | 5 |
241 | Solid Material Comminution or Disintegration | 3 | 0 | 0 | 0 | 2 | 5 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 1 | 3 | 0 | 1 | 5 |
312 | Supports: Cabinet Structure | 2 | 2 | 0 | 1 | 0 | 5 |
361 | Electricity: Electrical Systems and Devices | 0 | 1 | 4 | 0 | 0 | 5 |
362 | Illumination | 1 | 1 | 1 | 2 | 0 | 5 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 1 | 0 | 1 | 1 | 2 | 5 |
404 | Road Structure, Process, or Apparatus | 0 | 1 | 1 | 2 | 1 | 5 |
440 | Marine Propulsion | 2 | 3 | 0 | 0 | 0 | 5 |
482 | Exercise Devices | 0 | 2 | 0 | 1 | 2 | 5 |
074 | Machine Element or Mechanism | 1 | 1 | 0 | 1 | 1 | 4 |
108 | Horizontally Supported Planar Surfaces | 1 | 1 | 1 | 0 | 1 | 4 |
182 | Fire Escape, Ladder, or Scaffold | 2 | 0 | 1 | 1 | 0 | 4 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 0 | 1 | 0 | 0 | 3 | 4 |
220 | Receptacles | 0 | 2 | 0 | 1 | 1 | 4 |
261 | Gas and Liquid Contact Apparatus | 1 | 1 | 1 | 1 | 0 | 4 |
296 | Land Vehicles: Bodies and Tops | 1 | 0 | 1 | 0 | 2 | 4 |
315 | Electric Lamp and Discharge Devices: Systems | 1 | 0 | 3 | 0 | 0 | 4 |
324 | Electricity: Measuring and Testing | 2 | 1 | 0 | 0 | 1 | 4 |
359 | Optics: Systems (Including Communication) and Elements | 1 | 1 | 0 | 0 | 2 | 4 |
434 | Education and Demonstration | 1 | 1 | 1 | 0 | 1 | 4 |
713 | Support (Electrical Computers and Digital Processing Systems) | 1 | 0 | 3 | 0 | 0 | 4 |
019 | Textiles: Fiber Preparation | 0 | 2 | 0 | 1 | 0 | 3 |
033 | Geometrical Instruments | 0 | 0 | 0 | 1 | 2 | 3 |
056 | Harvesters | 0 | 0 | 2 | 0 | 1 | 3 |
084 | Music | 0 | 2 | 0 | 0 | 1 | 3 |
100 | Presses | 0 | 0 | 1 | 1 | 1 | 3 |
134 | Cleaning and Liquid Contact with Solids | 0 | 1 | 0 | 1 | 1 | 3 |
135 | Tent, Canopy, Umbrella, or Cane | 1 | 1 | 0 | 1 | 0 | 3 |
175 | Boring or Penetrating the Earth | 1 | 0 | 0 | 0 | 2 | 3 |
181 | Acoustics | 0 | 1 | 0 | 1 | 1 | 3 |
211 | Supports: Racks | 0 | 0 | 2 | 0 | 1 | 3 |
242 | Winding, Tensioning, or Guiding | 1 | 2 | 0 | 0 | 0 | 3 |
294 | Handling: Hand and Hoist-Line Implements | 1 | 0 | 0 | 1 | 1 | 3 |
323 | Electricity: Power Supply or Regulation Systems | 1 | 0 | 0 | 2 | 0 | 3 |
366 | Agitating (e.g., of articles and materials) | 0 | 0 | 3 | 0 | 0 | 3 |
379 | Telephonic Communications | 0 | 0 | 2 | 1 | 0 | 3 |
427 | Coating Processes | 3 | 0 | 0 | 0 | 0 | 3 |
439 | Electrical Connectors | 0 | 0 | 3 | 0 | 0 | 3 |
452 | Butchering | 0 | 1 | 0 | 1 | 1 | 3 |
588 | Hazardous or Toxic Waste Destruction or Containment | 1 | 2 | 0 | 0 | 0 | 3 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 1 | 1 | 1 | 0 | 0 | 3 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 0 | 0 | 0 | 2 | 1 | 3 |
714 | Error Detection/Correction and Fault Detection/Recovery | 0 | 0 | 0 | 2 | 1 | 3 |
024 | Buckles, Buttons, Clasps, Etc. | 1 | 1 | 0 | 0 | 0 | 2 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 0 | 1 | 1 | 0 | 2 |
036 | Boots, Shoes, and Leggings | 0 | 1 | 0 | 1 | 0 | 2 |
040 | Card, Picture, or Sign Exhibiting | 0 | 1 | 0 | 0 | 1 | 2 |
047 | Plant Husbandry | 1 | 0 | 0 | 0 | 1 | 2 |
049 | Movable or Removable Closures | 0 | 1 | 1 | 0 | 0 | 2 |
060 | Power Plants | 0 | 0 | 0 | 1 | 1 | 2 |
070 | Locks | 0 | 0 | 0 | 1 | 1 | 2 |
123 | Internal-Combustion Engines | 2 | 0 | 0 | 0 | 0 | 2 |
126 | Stoves and Furnaces | 0 | 0 | 1 | 1 | 0 | 2 |
127 | Sugar, Starch, and Carbohydrates | 0 | 0 | 0 | 1 | 1 | 2 |
132 | Toilet | 1 | 0 | 0 | 1 | 0 | 2 |
162 | Paper Making and Fiber Liberation | 0 | 1 | 0 | 0 | 1 | 2 |
169 | Fire Extinguishers | 0 | 0 | 0 | 0 | 2 | 2 |
177 | Weighing Scales | 0 | 1 | 0 | 0 | 1 | 2 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 0 | 2 | 0 | 0 | 0 | 2 |
208 | Mineral Oils: Processes and Products | 1 | 0 | 0 | 1 | 0 | 2 |
232 | Deposit and Collection Receptacles | 1 | 1 | 0 | 0 | 0 | 2 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 0 | 1 | 0 | 1 | 0 | 2 |
307 | Electrical Transmission or Interconnection Systems | 0 | 1 | 0 | 0 | 1 | 2 |
330 | Amplifiers | 0 | 1 | 1 | 0 | 0 | 2 |
356 | Optics: Measuring and Testing | 0 | 0 | 1 | 1 | 0 | 2 |
410 | Freight Accommodation On Freight Carrier | 1 | 0 | 0 | 0 | 1 | 2 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 1 | 0 | 1 | 0 | 2 |
431 | Combustion | 0 | 1 | 0 | 1 | 0 | 2 |
441 | Buoys, Rafts, and Aquatic Devices | 0 | 1 | 0 | 1 | 0 | 2 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 0 | 1 | 0 | 0 | 1 | 2 |
463 | Amusement Devices: Games | 1 | 0 | 1 | 0 | 0 | 2 |
472 | Amusement Devices | 1 | 1 | 0 | 0 | 0 | 2 |
475 | Planetary Gear Transmission Systems or Components | 0 | 0 | 0 | 1 | 1 | 2 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 0 | 0 | 2 | 2 |
607 | Surgery: Light, Thermal, and Electrical Application | 0 | 0 | 1 | 1 | 0 | 2 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 1 | 0 | 1 | 0 | 0 | 2 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 0 | 1 | 1 | 0 | 2 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 0 | 0 | 1 | 0 | 1 |
030 | Cutlery | 0 | 0 | 0 | 0 | 1 | 1 |
055 | Gas Separation | 0 | 0 | 0 | 0 | 1 | 1 |
059 | Chain, Staple, and Horseshoe Making | 0 | 0 | 0 | 0 | 1 | 1 |
071 | Chemistry: Fertilizers | 0 | 1 | 0 | 0 | 0 | 1 |
081 | Tools | 0 | 0 | 1 | 0 | 0 | 1 |
083 | Cutting | 0 | 0 | 0 | 0 | 1 | 1 |
086 | Ammunition and Explosive-Charge Making | 1 | 0 | 0 | 0 | 0 | 1 |
096 | Gas Separation: Apparatus | 0 | 0 | 0 | 1 | 0 | 1 |
102 | Ammunition and Explosives | 0 | 0 | 0 | 0 | 1 | 1 |
104 | Railways | 1 | 0 | 0 | 0 | 0 | 1 |
111 | Planting | 1 | 0 | 0 | 0 | 0 | 1 |
112 | Sewing | 0 | 0 | 1 | 0 | 0 | 1 |
118 | Coating Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
122 | Liquid Heaters and Vaporizers | 0 | 0 | 1 | 0 | 0 | 1 |
136 | Batteries: Thermoelectric and Photoelectric | 0 | 0 | 0 | 0 | 1 | 1 |
138 | Pipes and Tubular Conduits | 1 | 0 | 0 | 0 | 0 | 1 |
142 | Wood Turning | 0 | 0 | 0 | 0 | 1 | 1 |
152 | Resilient Tires and Wheels | 0 | 1 | 0 | 0 | 0 | 1 |
172 | Earth Working | 0 | 0 | 1 | 0 | 0 | 1 |
180 | Motor Vehicles | 0 | 0 | 1 | 0 | 0 | 1 |
184 | Lubrication | 0 | 1 | 0 | 0 | 0 | 1 |
188 | Brakes | 0 | 0 | 0 | 1 | 0 | 1 |
209 | Classifying, Separating, and Assorting Solids | 1 | 0 | 0 | 0 | 0 | 1 |
221 | Article Dispensing | 0 | 0 | 0 | 1 | 0 | 1 |
224 | Package and Article Carriers | 0 | 0 | 1 | 0 | 0 | 1 |
238 | Railways: Surface Track | 1 | 0 | 0 | 0 | 0 | 1 |
244 | Aeronautics | 0 | 0 | 0 | 1 | 0 | 1 |
252 | Compositions | 0 | 0 | 1 | 0 | 0 | 1 |
256 | Fences | 0 | 0 | 0 | 1 | 0 | 1 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 0 | 1 | 0 | 0 | 0 | 1 |
267 | Spring Devices | 1 | 0 | 0 | 0 | 0 | 1 |
283 | Printed Matter | 0 | 0 | 0 | 1 | 0 | 1 |
285 | Pipe Joints or Couplings | 0 | 0 | 0 | 1 | 0 | 1 |
292 | Closure Fasteners | 1 | 0 | 0 | 0 | 0 | 1 |
298 | Land Vehicles: Dumping | 0 | 0 | 0 | 1 | 0 | 1 |
333 | Wave Transmission Lines and Networks | 0 | 0 | 1 | 0 | 0 | 1 |
336 | Inductor Devices | 1 | 0 | 0 | 0 | 0 | 1 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 0 | 1 | 0 | 0 | 0 | 1 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 0 | 0 | 0 | 0 | 1 | 1 |
363 | Electric Power Conversion Systems | 0 | 0 | 0 | 0 | 1 | 1 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 1 | 0 | 0 | 0 | 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 | 0 | 1 | 1 |
392 | Electric Resistance Heating Devices | 0 | 0 | 0 | 0 | 1 | 1 |
403 | Joints and Connections | 0 | 0 | 0 | 0 | 1 | 1 |
409 | Gear Cutting, Milling, or Planing | 0 | 0 | 0 | 0 | 1 | 1 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 0 | 1 | 0 | 0 | 0 | 1 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 0 | 0 | 1 | 0 | 1 |
417 | Pumps | 0 | 1 | 0 | 0 | 0 | 1 |
423 | Chemistry of Inorganic Compounds | 0 | 0 | 0 | 0 | 1 | 1 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 0 | 0 | 0 | 0 | 1 | 1 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 0 | 0 | 0 | 1 | 0 | 1 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 0 | 0 | 0 | 1 | 0 | 1 |
725 | Interactive Video Distribution Systems | 0 | 0 | 0 | 1 | 0 | 1 |
ALL | ALL CLASSES | 137 | 156 | 175 | 188 | 182 | 838 |
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/