U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
438 | Semiconductor Device Manufacturing: Process | 37 | 104 | 152 | 257 | 392 | 942 |
365 | Static Information Storage and Retrieval | 34 | 72 | 116 | 173 | 140 | 535 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 10 | 31 | 96 | 134 | 183 | 454 |
714 | Error Detection/Correction and Fault Detection/Recovery | 9 | 9 | 17 | 31 | 33 | 99 |
324 | Electricity: Measuring and Testing | 11 | 5 | 17 | 22 | 40 | 95 |
029 | Metal Working | 10 | 16 | 9 | 21 | 28 | 84 |
361 | Electricity: Electrical Systems and Devices | 4 | 8 | 14 | 22 | 26 | 74 |
358 | Facsimile and Static Presentation Processing | 13 | 8 | 15 | 6 | 23 | 65 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 7 | 6 | 17 | 12 | 23 | 65 |
399 | Electrophotography | 16 | 8 | 12 | 9 | 19 | 64 |
451 | Abrading | 2 | 13 | 16 | 18 | 15 | 64 |
427 | Coating Processes | 3 | 12 | 13 | 17 | 17 | 62 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 9 | 10 | 8 | 9 | 19 | 55 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 4 | 8 | 11 | 13 | 18 | 54 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 1 | 5 | 8 | 21 | 13 | 48 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 3 | 2 | 11 | 11 | 20 | 47 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 2 | 1 | 5 | 14 | 23 | 45 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 7 | 10 | 10 | 6 | 10 | 43 |
313 | Electric Lamp and Discharge Devices | 0 | 4 | 8 | 12 | 16 | 40 |
326 | Electronic Digital Logic Circuitry | 5 | 6 | 6 | 11 | 12 | 40 |
134 | Cleaning and Liquid Contact with Solids | 1 | 5 | 6 | 13 | 13 | 38 |
073 | Measuring and Testing | 5 | 5 | 10 | 7 | 10 | 37 |
118 | Coating Apparatus | 0 | 2 | 10 | 11 | 14 | 37 |
340 | Communications: Electrical | 0 | 4 | 2 | 5 | 24 | 35 |
216 | Etching a Substrate: Processes | 3 | 3 | 10 | 6 | 11 | 33 |
228 | Metal Fusion Bonding | 1 | 5 | 3 | 6 | 18 | 33 |
315 | Electric Lamp and Discharge Devices: Systems | 6 | 6 | 10 | 6 | 5 | 33 |
347 | Incremental Printing of Symbolic Information | 3 | 2 | 15 | 6 | 7 | 33 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 0 | 2 | 5 | 8 | 16 | 31 |
204 | Chemistry: Electrical and Wave Energy | 0 | 4 | 7 | 6 | 14 | 31 |
713 | Support (Electrical Computers and Digital Processing Systems) | 2 | 2 | 3 | 14 | 10 | 31 |
360 | Dynamic Magnetic Information Storage or Retrieval | 7 | 1 | 2 | 7 | 9 | 26 |
210 | Liquid Purification or Separation | 2 | 3 | 6 | 9 | 4 | 24 |
219 | Electric Heating | 1 | 2 | 4 | 5 | 12 | 24 |
052 | Static Structures (e.g., Buildings) | 4 | 3 | 7 | 4 | 5 | 23 |
426 | Food or Edible Material: Processes, Compositions, and Products | 5 | 5 | 3 | 4 | 6 | 23 |
250 | Radiant Energy | 2 | 2 | 4 | 9 | 4 | 21 |
323 | Electricity: Power Supply or Regulation Systems | 4 | 4 | 3 | 5 | 5 | 21 |
356 | Optics: Measuring and Testing | 2 | 1 | 5 | 7 | 6 | 21 |
439 | Electrical Connectors | 0 | 0 | 3 | 9 | 8 | 20 |
280 | Land Vehicles | 4 | 7 | 1 | 4 | 3 | 19 |
428 | Stock Material or Miscellaneous Articles | 1 | 3 | 2 | 5 | 8 | 19 |
206 | Special Receptacle or Package | 5 | 4 | 2 | 2 | 3 | 16 |
414 | Material or Article Handling | 0 | 5 | 4 | 5 | 2 | 16 |
435 | Chemistry: Molecular Biology and Microbiology | 1 | 7 | 2 | 2 | 4 | 16 |
242 | Winding, Tensioning, or Guiding | 0 | 1 | 4 | 5 | 5 | 15 |
248 | Supports (e.g., for holding articles, etc.) | 0 | 3 | 3 | 5 | 4 | 15 |
252 | Compositions | 0 | 5 | 2 | 4 | 4 | 15 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 0 | 0 | 6 | 6 | 3 | 15 |
174 | Electricity: Conductors and Insulators | 1 | 2 | 1 | 4 | 6 | 14 |
002 | Apparel | 1 | 3 | 1 | 2 | 6 | 13 |
083 | Cutting | 2 | 1 | 3 | 2 | 5 | 13 |
382 | Image Analysis | 0 | 0 | 5 | 4 | 4 | 13 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 0 | 2 | 1 | 3 | 7 | 13 |
101 | Printing | 3 | 0 | 3 | 2 | 4 | 12 |
269 | Work Holders | 1 | 1 | 4 | 5 | 1 | 12 |
271 | Sheet Feeding or Delivering | 2 | 4 | 1 | 3 | 2 | 12 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 4 | 1 | 1 | 4 | 2 | 12 |
455 | Telecommunications | 0 | 2 | 3 | 1 | 6 | 12 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 1 | 0 | 3 | 4 | 4 | 12 |
033 | Geometrical Instruments | 2 | 1 | 2 | 3 | 3 | 11 |
209 | Classifying, Separating, and Assorting Solids | 0 | 1 | 1 | 5 | 4 | 11 |
331 | Oscillators | 2 | 3 | 0 | 4 | 2 | 11 |
473 | Games Using Tangible Projectile | 2 | 0 | 4 | 2 | 3 | 11 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 0 | 1 | 1 | 4 | 5 | 11 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 0 | 3 | 1 | 4 | 3 | 11 |
015 | Brushing, Scrubbing, and General Cleaning | 4 | 2 | 0 | 2 | 2 | 10 |
211 | Supports: Racks | 0 | 2 | 1 | 4 | 3 | 10 |
224 | Package and Article Carriers | 0 | 1 | 2 | 2 | 5 | 10 |
341 | Coded Data Generation or Conversion | 1 | 3 | 1 | 2 | 3 | 10 |
362 | Illumination | 1 | 0 | 3 | 2 | 4 | 10 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 0 | 2 | 1 | 5 | 2 | 10 |
392 | Electric Resistance Heating Devices | 1 | 1 | 3 | 3 | 2 | 10 |
588 | Hazardous or Toxic Waste Destruction or Containment | 0 | 2 | 3 | 3 | 2 | 10 |
119 | Animal Husbandry | 0 | 0 | 2 | 4 | 3 | 9 |
125 | Stone Working | 0 | 0 | 1 | 3 | 5 | 9 |
296 | Land Vehicles: Bodies and Tops | 3 | 2 | 0 | 1 | 3 | 9 |
370 | Multiplex Communications | 1 | 1 | 2 | 0 | 5 | 9 |
532 | Organic Compounds (includes Classes 532-570) | 1 | 2 | 2 | 2 | 2 | 9 |
036 | Boots, Shoes, and Leggings | 0 | 2 | 1 | 2 | 3 | 8 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 0 | 1 | 3 | 3 | 1 | 8 |
128 | Surgery (includes Class 600) | 3 | 1 | 1 | 1 | 2 | 8 |
241 | Solid Material Comminution or Disintegration | 0 | 2 | 1 | 3 | 2 | 8 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 1 | 0 | 2 | 2 | 3 | 8 |
294 | Handling: Hand and Hoist-Line Implements | 0 | 1 | 2 | 1 | 4 | 8 |
604 | Surgery (Medicators and Receptors) | 4 | 1 | 1 | 1 | 1 | 8 |
043 | Fishing, Trapping, and Vermin Destroying | 2 | 2 | 1 | 1 | 1 | 7 |
062 | Refrigeration | 3 | 0 | 1 | 1 | 2 | 7 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 1 | 0 | 4 | 0 | 2 | 7 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 0 | 1 | 2 | 2 | 2 | 7 |
273 | Amusement Devices: Games | 0 | 3 | 1 | 2 | 1 | 7 |
359 | Optics: Systems (Including Communication) and Elements | 1 | 0 | 3 | 2 | 1 | 7 |
369 | Dynamic Information Storage or Retrieval | 1 | 1 | 1 | 0 | 4 | 7 |
423 | Chemistry of Inorganic Compounds | 1 | 3 | 2 | 0 | 1 | 7 |
042 | Firearms | 0 | 4 | 1 | 1 | 0 | 6 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 0 | 0 | 2 | 2 | 2 | 6 |
126 | Stoves and Furnaces | 1 | 3 | 1 | 0 | 1 | 6 |
137 | Fluid Handling | 4 | 2 | 0 | 0 | 0 | 6 |
148 | Metal Treatment | 0 | 0 | 1 | 2 | 3 | 6 |
180 | Motor Vehicles | 1 | 1 | 2 | 0 | 2 | 6 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 0 | 1 | 1 | 3 | 1 | 6 |
220 | Receptacles | 1 | 0 | 1 | 2 | 2 | 6 |
292 | Closure Fasteners | 1 | 1 | 0 | 0 | 4 | 6 |
400 | Typewriting Machines | 2 | 0 | 1 | 3 | 0 | 6 |
404 | Road Structure, Process, or Apparatus | 1 | 0 | 1 | 2 | 2 | 6 |
436 | Chemistry: Analytical and Immunological Testing | 1 | 1 | 0 | 3 | 1 | 6 |
004 | Baths, Closets, Sinks, and Spittoons | 0 | 1 | 1 | 0 | 3 | 5 |
034 | Drying and Gas or Vapor Contact with Solids | 0 | 0 | 3 | 1 | 1 | 5 |
047 | Plant Husbandry | 0 | 1 | 1 | 1 | 2 | 5 |
074 | Machine Element or Mechanism | 1 | 0 | 0 | 2 | 2 | 5 |
081 | Tools | 0 | 0 | 0 | 1 | 4 | 5 |
114 | Ships | 0 | 1 | 2 | 2 | 0 | 5 |
140 | Wireworking | 0 | 1 | 1 | 2 | 1 | 5 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 1 | 1 | 0 | 1 | 2 | 5 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 0 | 1 | 0 | 2 | 2 | 5 |
222 | Dispensing (apparatus and process) | 1 | 0 | 0 | 2 | 2 | 5 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 1 | 2 | 1 | 1 | 0 | 5 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 0 | 0 | 0 | 3 | 2 | 5 |
312 | Supports: Cabinet Structure | 2 | 1 | 1 | 0 | 1 | 5 |
343 | Communications: Radio Wave Antennas | 1 | 0 | 1 | 1 | 2 | 5 |
363 | Electric Power Conversion Systems | 2 | 2 | 0 | 1 | 0 | 5 |
405 | Hydraulic and Earth Engineering | 0 | 1 | 2 | 2 | 0 | 5 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 0 | 1 | 3 | 1 | 0 | 5 |
433 | Dentistry | 2 | 1 | 0 | 1 | 1 | 5 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 0 | 1 | 0 | 2 | 2 | 5 |
105 | Railway Rolling Stock | 2 | 2 | 0 | 0 | 0 | 4 |
132 | Toilet | 0 | 1 | 0 | 3 | 0 | 4 |
175 | Boring or Penetrating the Earth | 0 | 1 | 2 | 1 | 0 | 4 |
244 | Aeronautics | 1 | 0 | 1 | 1 | 1 | 4 |
297 | Chairs and Seats | 0 | 2 | 0 | 1 | 1 | 4 |
307 | Electrical Transmission or Interconnection Systems | 1 | 0 | 0 | 2 | 1 | 4 |
318 | Electricity: Motive Power Systems | 3 | 0 | 1 | 0 | 0 | 4 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 2 | 1 | 1 | 0 | 0 | 4 |
348 | Television | 0 | 2 | 0 | 0 | 2 | 4 |
355 | Photocopying | 0 | 1 | 0 | 1 | 2 | 4 |
366 | Agitating (e.g., of articles and materials) | 2 | 0 | 0 | 1 | 1 | 4 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 1 | 0 | 0 | 3 | 0 | 4 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 0 | 0 | 0 | 2 | 2 | 4 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 0 | 0 | 0 | 1 | 3 | 4 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 0 | 0 | 0 | 2 | 2 | 4 |
005 | Beds | 1 | 2 | 0 | 0 | 0 | 3 |
024 | Buckles, Buttons, Clasps, Etc. | 0 | 0 | 0 | 3 | 0 | 3 |
030 | Cutlery | 0 | 0 | 2 | 1 | 0 | 3 |
051 | Abrasive Tool Making Process, Material, or Composition | 0 | 1 | 0 | 1 | 1 | 3 |
071 | Chemistry: Fertilizers | 0 | 1 | 0 | 1 | 1 | 3 |
072 | Metal Deforming | 0 | 1 | 0 | 1 | 1 | 3 |
084 | Music | 0 | 0 | 2 | 1 | 0 | 3 |
095 | Gas Separation: Processes | 0 | 1 | 1 | 0 | 1 | 3 |
100 | Presses | 0 | 0 | 0 | 2 | 1 | 3 |
124 | Mechanical Guns and Projectors | 1 | 0 | 0 | 2 | 0 | 3 |
164 | Metal Founding | 0 | 1 | 0 | 0 | 2 | 3 |
188 | Brakes | 0 | 1 | 0 | 0 | 2 | 3 |
198 | Conveyors: Power-Driven | 0 | 0 | 0 | 2 | 1 | 3 |
221 | Article Dispensing | 1 | 0 | 1 | 0 | 1 | 3 |
251 | Valves and Valve Actuation | 1 | 1 | 0 | 1 | 0 | 3 |
267 | Spring Devices | 0 | 1 | 0 | 1 | 1 | 3 |
270 | Sheet-Material Associating | 0 | 0 | 3 | 0 | 0 | 3 |
285 | Pipe Joints or Couplings | 1 | 1 | 0 | 0 | 1 | 3 |
417 | Pumps | 0 | 0 | 1 | 1 | 1 | 3 |
504 | Plant Protecting and Regulating Compositions | 0 | 0 | 0 | 2 | 1 | 3 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 0 | 0 | 1 | 1 | 1 | 3 |
602 | Surgery: Splint, Brace, or Bandage | 1 | 0 | 1 | 1 | 0 | 3 |
606 | Surgery (instruments) | 0 | 0 | 2 | 0 | 1 | 3 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 1 | 1 | 0 | 0 | 1 | 3 |
007 | Compound Hand Tools | 1 | 1 | 0 | 0 | 0 | 2 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 1 | 0 | 0 | 0 | 1 | 2 |
040 | Card, Picture, or Sign Exhibiting | 0 | 0 | 0 | 0 | 2 | 2 |
053 | Package Making | 1 | 0 | 0 | 0 | 1 | 2 |
054 | Harness (for animals) | 0 | 0 | 0 | 1 | 1 | 2 |
055 | Gas Separation | 0 | 1 | 1 | 0 | 0 | 2 |
056 | Harvesters | 0 | 0 | 0 | 0 | 2 | 2 |
065 | Glass Manufacturing | 0 | 0 | 0 | 1 | 1 | 2 |
070 | Locks | 0 | 0 | 0 | 0 | 2 | 2 |
076 | Metal Tools and Implements, Making | 2 | 0 | 0 | 0 | 0 | 2 |
092 | Expansible Chamber Devices | 1 | 0 | 1 | 0 | 0 | 2 |
099 | Foods and Beverages: Apparatus | 0 | 1 | 0 | 1 | 0 | 2 |
102 | Ammunition and Explosives | 1 | 1 | 0 | 0 | 0 | 2 |
108 | Horizontally Supported Planar Surfaces | 0 | 0 | 0 | 0 | 2 | 2 |
112 | Sewing | 1 | 0 | 1 | 0 | 0 | 2 |
136 | Batteries: Thermoelectric and Photoelectric | 0 | 1 | 0 | 0 | 1 | 2 |
171 | Unearthing Plants or Buried Objects | 1 | 0 | 0 | 0 | 1 | 2 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 0 | 0 | 1 | 1 | 2 |
184 | Lubrication | 1 | 0 | 0 | 0 | 1 | 2 |
192 | Clutches and Power-Stop Control | 0 | 0 | 0 | 2 | 0 | 2 |
212 | Traversing Hoists | 0 | 1 | 0 | 1 | 0 | 2 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 0 | 0 | 0 | 0 | 2 | 2 |
295 | Railway Wheels and Axles | 0 | 0 | 0 | 1 | 1 | 2 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 0 | 0 | 0 | 1 | 1 | 2 |
329 | Demodulators | 0 | 0 | 0 | 1 | 1 | 2 |
333 | Wave Transmission Lines and Networks | 0 | 1 | 0 | 0 | 1 | 2 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 0 | 1 | 1 | 0 | 0 | 2 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 0 | 1 | 1 | 0 | 0 | 2 |
374 | Thermal Measuring and Testing | 0 | 0 | 1 | 0 | 1 | 2 |
375 | Pulse or Digital Communications | 1 | 1 | 0 | 0 | 0 | 2 |
379 | Telephonic Communications | 0 | 0 | 1 | 0 | 1 | 2 |
381 | Electrical Audio Signal Processing Systems and Devices | 0 | 0 | 2 | 0 | 0 | 2 |
383 | Flexible Bags | 0 | 0 | 1 | 1 | 0 | 2 |
408 | Cutting by Use of Rotating Axially Moving Tool | 0 | 1 | 0 | 1 | 0 | 2 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 1 | 0 | 0 | 1 | 0 | 2 |
432 | Heating | 0 | 1 | 0 | 0 | 1 | 2 |
434 | Education and Demonstration | 1 | 0 | 0 | 1 | 0 | 2 |
446 | Amusement Devices: Toys | 2 | 0 | 0 | 0 | 0 | 2 |
706 | DP: Artificial Intelligence (Data Processing) | 0 | 1 | 0 | 1 | 0 | 2 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 0 | 0 | 1 | 0 | 1 | 2 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 1 | 0 | 0 | 0 | 1 | 2 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 0 | 0 | 1 | 1 | 0 | 2 |
001 | ** Classification Undetermined ** | 0 | 0 | 0 | 0 | 1 | 1 |
016 | Miscellaneous Hardware | 0 | 0 | 0 | 0 | 1 | 1 |
028 | Textiles: Manufacturing | 0 | 0 | 0 | 0 | 1 | 1 |
060 | Power Plants | 0 | 1 | 0 | 0 | 0 | 1 |
086 | Ammunition and Explosive-Charge Making | 0 | 0 | 1 | 0 | 0 | 1 |
104 | Railways | 0 | 0 | 0 | 0 | 1 | 1 |
106 | Compositions: Coating or Plastic | 0 | 0 | 1 | 0 | 0 | 1 |
110 | Furnaces | 1 | 0 | 0 | 0 | 0 | 1 |
116 | Signals and Indicators | 0 | 0 | 0 | 0 | 1 | 1 |
122 | Liquid Heaters and Vaporizers | 0 | 0 | 0 | 0 | 1 | 1 |
123 | Internal-Combustion Engines | 0 | 0 | 0 | 0 | 1 | 1 |
127 | Sugar, Starch, and Carbohydrates | 0 | 0 | 0 | 0 | 1 | 1 |
138 | Pipes and Tubular Conduits | 1 | 0 | 0 | 0 | 0 | 1 |
144 | Woodworking | 0 | 0 | 0 | 0 | 1 | 1 |
149 | Explosive and Thermic Compositions or Charges | 1 | 0 | 0 | 0 | 0 | 1 |
162 | Paper Making and Fiber Liberation | 0 | 0 | 1 | 0 | 0 | 1 |
165 | Heat Exchange | 0 | 1 | 0 | 0 | 0 | 1 |
172 | Earth Working | 0 | 0 | 1 | 0 | 0 | 1 |
173 | Tool Driving or Impacting | 0 | 0 | 0 | 1 | 0 | 1 |
181 | Acoustics | 1 | 0 | 0 | 0 | 0 | 1 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 0 | 1 | 0 | 0 | 0 | 1 |
200 | Electricity: Circuit Makers and Breakers | 1 | 0 | 0 | 0 | 0 | 1 |
202 | Distillation: Apparatus | 0 | 0 | 1 | 0 | 0 | 1 |
203 | Distillation: Processes, Separatory | 1 | 0 | 0 | 0 | 0 | 1 |
223 | Apparel Apparatus | 0 | 1 | 0 | 0 | 0 | 1 |
238 | Railways: Surface Track | 0 | 0 | 1 | 0 | 0 | 1 |
266 | Metallurgical Apparatus | 0 | 0 | 0 | 0 | 1 | 1 |
283 | Printed Matter | 0 | 0 | 0 | 0 | 1 | 1 |
289 | Knots and Knot Tying | 0 | 0 | 0 | 0 | 1 | 1 |
301 | Land Vehicles: Wheels and Axles | 1 | 0 | 0 | 0 | 0 | 1 |
310 | Electrical Generator or Motor Structure | 0 | 0 | 0 | 0 | 1 | 1 |
332 | Modulators | 0 | 0 | 0 | 1 | 0 | 1 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 0 | 0 | 0 | 1 | 0 | 1 |
368 | Horology: Time Measuring Systems or Devices | 0 | 0 | 0 | 1 | 0 | 1 |
372 | Coherent Light Generators | 0 | 0 | 1 | 0 | 0 | 1 |
373 | Industrial Electric Heating Furnaces | 0 | 0 | 0 | 1 | 0 | 1 |
385 | Optical Waveguides | 0 | 0 | 0 | 1 | 0 | 1 |
396 | Photography | 1 | 0 | 0 | 0 | 0 | 1 |
401 | Coating Implements with Material Supply | 0 | 0 | 0 | 1 | 0 | 1 |
403 | Joints and Connections | 0 | 0 | 0 | 0 | 1 | 1 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 0 | 0 | 0 | 0 | 1 | 1 |
412 | Bookbinding: Process and Apparatus | 1 | 0 | 0 | 0 | 0 | 1 |
418 | Rotary Expansible Chamber Devices | 0 | 0 | 0 | 0 | 1 | 1 |
440 | Marine Propulsion | 0 | 1 | 0 | 0 | 0 | 1 |
441 | Buoys, Rafts, and Aquatic Devices | 0 | 0 | 0 | 1 | 0 | 1 |
449 | Bee Culture (propagating, raising, caring for bees) | 0 | 1 | 0 | 0 | 0 | 1 |
454 | Ventilation | 0 | 0 | 0 | 1 | 0 | 1 |
460 | Crop Threshing or Separating | 0 | 0 | 1 | 0 | 0 | 1 |
463 | Amusement Devices: Games | 0 | 0 | 1 | 0 | 0 | 1 |
475 | Planetary Gear Transmission Systems or Components | 0 | 0 | 0 | 0 | 1 | 1 |
483 | Tool Changing | 0 | 1 | 0 | 0 | 0 | 1 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 0 | 0 | 0 | 0 | 1 | 1 |
501 | Compositions: Ceramic | 1 | 0 | 0 | 0 | 0 | 1 |
503 | Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor | 1 | 0 | 0 | 0 | 0 | 1 |
505 | Superconductor Technology: Apparatus, Material, Process | 0 | 0 | 0 | 1 | 0 | 1 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 0 | 0 | 0 | 0 | 1 | 1 |
585 | Chemistry of Hydrocarbon Compounds | 0 | 0 | 0 | 0 | 1 | 1 |
607 | Surgery: Light, Thermal, and Electrical Application | 0 | 0 | 0 | 1 | 0 | 1 |
ALL | ALL CLASSES | 365 | 565 | 854 | 1224 | 1570 | 4578 |
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
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