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) | 337 | 436 | 401 | 464 | 398 | 2036 |
532 | Organic Compounds (includes Classes 532-570) | 161 | 186 | 146 | 146 | 141 | 780 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 113 | 105 | 122 | 86 | 99 | 525 |
379 | Telephonic Communications | 112 | 67 | 112 | 120 | 96 | 507 |
435 | Chemistry: Molecular Biology and Microbiology | 79 | 96 | 97 | 111 | 69 | 452 |
370 | Multiplex Communications | 50 | 54 | 65 | 89 | 121 | 379 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 53 | 46 | 89 | 86 | 70 | 344 |
359 | Optics: Systems (Including Communication) and Elements | 48 | 46 | 76 | 82 | 86 | 338 |
385 | Optical Waveguides | 43 | 56 | 67 | 75 | 77 | 318 |
428 | Stock Material or Miscellaneous Articles | 45 | 54 | 72 | 73 | 71 | 315 |
455 | Telecommunications | 35 | 36 | 42 | 81 | 98 | 292 |
375 | Pulse or Digital Communications | 38 | 45 | 53 | 59 | 91 | 286 |
604 | Surgery (Medicators and Receptors) | 47 | 58 | 78 | 55 | 41 | 279 |
606 | Surgery (instruments) | 32 | 43 | 75 | 70 | 59 | 279 |
426 | Food or Edible Material: Processes, Compositions, and Products | 62 | 35 | 37 | 44 | 49 | 227 |
382 | Image Analysis | 23 | 27 | 56 | 57 | 53 | 216 |
128 | Surgery (includes Class 600) | 29 | 43 | 48 | 43 | 37 | 200 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 15 | 12 | 52 | 55 | 58 | 192 |
348 | Television | 38 | 33 | 35 | 36 | 39 | 181 |
340 | Communications: Electrical | 22 | 23 | 36 | 43 | 42 | 166 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 15 | 24 | 36 | 47 | 44 | 166 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 18 | 34 | 48 | 31 | 33 | 164 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 20 | 34 | 37 | 30 | 30 | 151 |
508 | Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions | 34 | 30 | 34 | 30 | 18 | 146 |
439 | Electrical Connectors | 13 | 16 | 15 | 36 | 64 | 144 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 20 | 18 | 34 | 34 | 33 | 139 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 29 | 19 | 26 | 33 | 32 | 139 |
206 | Special Receptacle or Package | 20 | 25 | 22 | 37 | 28 | 132 |
427 | Coating Processes | 21 | 25 | 29 | 21 | 34 | 130 |
714 | Error Detection/Correction and Fault Detection/Recovery | 25 | 16 | 31 | 25 | 31 | 128 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 27 | 21 | 26 | 32 | 19 | 125 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 9 | 14 | 27 | 27 | 39 | 116 |
438 | Semiconductor Device Manufacturing: Process | 15 | 22 | 14 | 29 | 35 | 115 |
073 | Measuring and Testing | 27 | 18 | 17 | 22 | 30 | 114 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 26 | 26 | 28 | 21 | 13 | 114 |
208 | Mineral Oils: Processes and Products | 20 | 22 | 14 | 33 | 24 | 113 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 21 | 11 | 24 | 30 | 27 | 113 |
210 | Liquid Purification or Separation | 22 | 22 | 26 | 29 | 13 | 112 |
585 | Chemistry of Hydrocarbon Compounds | 36 | 25 | 16 | 15 | 19 | 111 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 19 | 17 | 24 | 23 | 23 | 106 |
250 | Radiant Energy | 18 | 29 | 22 | 15 | 17 | 101 |
372 | Coherent Light Generators | 22 | 12 | 13 | 22 | 31 | 100 |
361 | Electricity: Electrical Systems and Devices | 4 | 24 | 18 | 19 | 32 | 97 |
062 | Refrigeration | 22 | 16 | 20 | 21 | 17 | 96 |
423 | Chemistry of Inorganic Compounds | 20 | 17 | 17 | 22 | 19 | 95 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 10 | 26 | 19 | 25 | 15 | 95 |
222 | Dispensing (apparatus and process) | 14 | 16 | 22 | 30 | 12 | 94 |
029 | Metal Working | 21 | 22 | 8 | 18 | 21 | 90 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 8 | 10 | 21 | 27 | 24 | 90 |
252 | Compositions | 12 | 13 | 27 | 17 | 20 | 89 |
052 | Static Structures (e.g., Buildings) | 14 | 11 | 20 | 20 | 21 | 86 |
473 | Games Using Tangible Projectile | 17 | 17 | 20 | 14 | 14 | 82 |
015 | Brushing, Scrubbing, and General Cleaning | 10 | 12 | 22 | 18 | 17 | 79 |
248 | Supports (e.g., for holding articles, etc.) | 10 | 10 | 13 | 19 | 26 | 78 |
174 | Electricity: Conductors and Insulators | 11 | 7 | 16 | 19 | 23 | 76 |
482 | Exercise Devices | 20 | 21 | 16 | 10 | 8 | 75 |
280 | Land Vehicles | 13 | 21 | 16 | 9 | 14 | 73 |
356 | Optics: Measuring and Testing | 14 | 10 | 12 | 20 | 16 | 72 |
324 | Electricity: Measuring and Testing | 15 | 15 | 15 | 11 | 15 | 71 |
362 | Illumination | 13 | 11 | 16 | 7 | 24 | 71 |
436 | Chemistry: Analytical and Immunological Testing | 13 | 7 | 17 | 23 | 10 | 70 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 13 | 5 | 13 | 16 | 22 | 69 |
273 | Amusement Devices: Games | 13 | 12 | 17 | 12 | 13 | 67 |
504 | Plant Protecting and Regulating Compositions | 26 | 14 | 10 | 9 | 8 | 67 |
002 | Apparel | 9 | 5 | 14 | 21 | 15 | 64 |
446 | Amusement Devices: Toys | 15 | 11 | 11 | 16 | 11 | 64 |
220 | Receptacles | 11 | 10 | 14 | 12 | 16 | 63 |
713 | Support (Electrical Computers and Digital Processing Systems) | 7 | 6 | 9 | 17 | 22 | 61 |
004 | Baths, Closets, Sinks, and Spittoons | 8 | 10 | 14 | 14 | 13 | 59 |
343 | Communications: Radio Wave Antennas | 12 | 8 | 4 | 17 | 17 | 58 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 9 | 10 | 15 | 13 | 10 | 57 |
330 | Amplifiers | 5 | 11 | 5 | 15 | 21 | 57 |
137 | Fluid Handling | 8 | 9 | 12 | 14 | 12 | 55 |
204 | Chemistry: Electrical and Wave Energy | 9 | 5 | 12 | 17 | 12 | 55 |
101 | Printing | 12 | 15 | 10 | 12 | 5 | 54 |
134 | Cleaning and Liquid Contact with Solids | 7 | 10 | 11 | 14 | 12 | 54 |
119 | Animal Husbandry | 7 | 7 | 15 | 13 | 11 | 53 |
381 | Electrical Audio Signal Processing Systems and Devices | 7 | 5 | 18 | 9 | 13 | 52 |
211 | Supports: Racks | 9 | 10 | 8 | 11 | 13 | 51 |
053 | Package Making | 7 | 12 | 7 | 12 | 12 | 50 |
084 | Music | 7 | 7 | 10 | 4 | 22 | 50 |
095 | Gas Separation: Processes | 9 | 7 | 9 | 14 | 11 | 50 |
132 | Toilet | 6 | 3 | 11 | 19 | 11 | 50 |
215 | Bottles and Jars | 6 | 12 | 13 | 10 | 9 | 50 |
313 | Electric Lamp and Discharge Devices | 6 | 11 | 11 | 11 | 10 | 49 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 10 | 6 | 8 | 17 | 7 | 48 |
434 | Education and Demonstration | 7 | 6 | 10 | 10 | 15 | 48 |
378 | X-Ray or Gamma Ray Systems or Devices | 5 | 2 | 9 | 17 | 14 | 47 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 6 | 6 | 13 | 15 | 6 | 46 |
333 | Wave Transmission Lines and Networks | 7 | 4 | 8 | 13 | 14 | 46 |
341 | Coded Data Generation or Conversion | 10 | 10 | 10 | 6 | 10 | 46 |
106 | Compositions: Coating or Plastic | 5 | 9 | 14 | 8 | 8 | 44 |
219 | Electric Heating | 8 | 7 | 11 | 9 | 9 | 44 |
433 | Dentistry | 6 | 9 | 11 | 9 | 9 | 44 |
044 | Fuel and Related Compositions | 13 | 4 | 7 | 12 | 7 | 43 |
310 | Electrical Generator or Motor Structure | 9 | 9 | 8 | 11 | 6 | 43 |
706 | DP: Artificial Intelligence (Data Processing) | 6 | 7 | 16 | 8 | 6 | 43 |
380 | Cryptography | 3 | 9 | 10 | 11 | 9 | 42 |
148 | Metal Treatment | 9 | 7 | 6 | 9 | 10 | 41 |
725 | Interactive Video Distribution Systems | 8 | 7 | 10 | 11 | 5 | 41 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 8 | 9 | 9 | 9 | 5 | 40 |
030 | Cutlery | 7 | 8 | 10 | 7 | 7 | 39 |
065 | Glass Manufacturing | 8 | 8 | 5 | 11 | 7 | 39 |
162 | Paper Making and Fiber Liberation | 3 | 11 | 9 | 11 | 5 | 39 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 2 | 9 | 12 | 5 | 10 | 38 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 4 | 10 | 2 | 8 | 14 | 38 |
081 | Tools | 7 | 5 | 2 | 9 | 14 | 37 |
401 | Coating Implements with Material Supply | 3 | 4 | 5 | 11 | 13 | 36 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 6 | 4 | 14 | 5 | 7 | 36 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 12 | 8 | 5 | 2 | 9 | 36 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 3 | 7 | 7 | 8 | 9 | 34 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 7 | 7 | 10 | 6 | 4 | 34 |
386 | Television Signal Processing for Dynamic Recording or Reproducing | 3 | 8 | 13 | 5 | 5 | 34 |
602 | Surgery: Splint, Brace, or Bandage | 9 | 5 | 8 | 7 | 5 | 34 |
242 | Winding, Tensioning, or Guiding | 6 | 5 | 5 | 7 | 10 | 33 |
297 | Chairs and Seats | 8 | 3 | 9 | 5 | 8 | 33 |
405 | Hydraulic and Earth Engineering | 6 | 8 | 8 | 10 | 1 | 33 |
123 | Internal-Combustion Engines | 7 | 8 | 6 | 7 | 4 | 32 |
463 | Amusement Devices: Games | 6 | 5 | 7 | 11 | 3 | 32 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 6 | 2 | 8 | 10 | 6 | 32 |
060 | Power Plants | 5 | 3 | 4 | 10 | 9 | 31 |
451 | Abrading | 8 | 8 | 10 | 1 | 4 | 31 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 5 | 9 | 11 | 2 | 4 | 31 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 6 | 5 | 8 | 6 | 5 | 30 |
198 | Conveyors: Power-Driven | 4 | 11 | 6 | 2 | 6 | 29 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 5 | 7 | 5 | 5 | 7 | 29 |
414 | Material or Article Handling | 4 | 3 | 8 | 8 | 6 | 29 |
607 | Surgery: Light, Thermal, and Electrical Application | 4 | 3 | 7 | 5 | 10 | 29 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 2 | 6 | 5 | 6 | 10 | 29 |
221 | Article Dispensing | 3 | 8 | 4 | 7 | 6 | 28 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 5 | 0 | 10 | 10 | 3 | 28 |
040 | Card, Picture, or Sign Exhibiting | 7 | 3 | 5 | 6 | 6 | 27 |
043 | Fishing, Trapping, and Vermin Destroying | 6 | 4 | 3 | 9 | 5 | 27 |
223 | Apparel Apparatus | 6 | 5 | 3 | 8 | 5 | 27 |
244 | Aeronautics | 2 | 3 | 10 | 8 | 4 | 27 |
294 | Handling: Hand and Hoist-Line Implements | 8 | 5 | 7 | 3 | 4 | 27 |
331 | Oscillators | 12 | 5 | 5 | 3 | 2 | 27 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 2 | 4 | 6 | 9 | 6 | 27 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 5 | 4 | 9 | 1 | 8 | 27 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 2 | 5 | 8 | 8 | 4 | 27 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 5 | 8 | 5 | 3 | 5 | 26 |
118 | Coating Apparatus | 4 | 4 | 7 | 7 | 4 | 26 |
315 | Electric Lamp and Discharge Devices: Systems | 4 | 3 | 9 | 4 | 6 | 26 |
365 | Static Information Storage and Retrieval | 4 | 7 | 6 | 4 | 5 | 26 |
070 | Locks | 2 | 4 | 9 | 6 | 4 | 25 |
099 | Foods and Beverages: Apparatus | 5 | 5 | 1 | 9 | 5 | 25 |
224 | Package and Article Carriers | 5 | 2 | 5 | 6 | 7 | 25 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 5 | 5 | 5 | 5 | 5 | 25 |
307 | Electrical Transmission or Interconnection Systems | 2 | 8 | 4 | 8 | 3 | 25 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 8 | 6 | 3 | 2 | 6 | 25 |
024 | Buckles, Buttons, Clasps, Etc. | 6 | 4 | 3 | 3 | 8 | 24 |
110 | Furnaces | 7 | 4 | 9 | 2 | 2 | 24 |
005 | Beds | 5 | 3 | 5 | 5 | 5 | 23 |
165 | Heat Exchange | 4 | 4 | 6 | 4 | 5 | 23 |
285 | Pipe Joints or Couplings | 8 | 4 | 7 | 3 | 1 | 23 |
512 | Perfume Compositions | 7 | 6 | 4 | 1 | 5 | 23 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 8 | 5 | 2 | 7 | 1 | 23 |
047 | Plant Husbandry | 4 | 4 | 3 | 6 | 5 | 22 |
102 | Ammunition and Explosives | 7 | 3 | 3 | 4 | 5 | 22 |
209 | Classifying, Separating, and Assorting Solids | 6 | 3 | 6 | 4 | 3 | 22 |
216 | Etching a Substrate: Processes | 4 | 11 | 6 | 1 | 0 | 22 |
366 | Agitating (e.g., of articles and materials) | 3 | 3 | 4 | 6 | 6 | 22 |
374 | Thermal Measuring and Testing | 4 | 7 | 3 | 2 | 6 | 22 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 4 | 4 | 2 | 8 | 3 | 21 |
083 | Cutting | 4 | 1 | 5 | 6 | 5 | 21 |
114 | Ships | 7 | 5 | 2 | 3 | 4 | 21 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 3 | 3 | 6 | 3 | 6 | 21 |
601 | Surgery: Kinesitherapy | 7 | 4 | 5 | 3 | 2 | 21 |
016 | Miscellaneous Hardware | 4 | 5 | 5 | 0 | 6 | 20 |
033 | Geometrical Instruments | 2 | 5 | 3 | 5 | 5 | 20 |
036 | Boots, Shoes, and Leggings | 1 | 6 | 3 | 7 | 3 | 20 |
241 | Solid Material Comminution or Disintegration | 3 | 4 | 3 | 5 | 5 | 20 |
312 | Supports: Cabinet Structure | 1 | 2 | 6 | 4 | 7 | 20 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 9 | 2 | 1 | 5 | 3 | 20 |
358 | Facsimile and Static Presentation Processing | 6 | 5 | 5 | 1 | 3 | 20 |
501 | Compositions: Ceramic | 5 | 1 | 2 | 7 | 5 | 20 |
251 | Valves and Valve Actuation | 4 | 5 | 3 | 4 | 3 | 19 |
369 | Dynamic Information Storage or Retrieval | 4 | 4 | 5 | 2 | 4 | 19 |
431 | Combustion | 5 | 6 | 5 | 1 | 2 | 19 |
182 | Fire Escape, Ladder, or Scaffold | 4 | 3 | 2 | 7 | 2 | 18 |
292 | Closure Fasteners | 5 | 1 | 3 | 5 | 4 | 18 |
363 | Electric Power Conversion Systems | 4 | 2 | 4 | 2 | 5 | 17 |
072 | Metal Deforming | 3 | 1 | 5 | 3 | 4 | 16 |
160 | Flexible or Portable Closure, Partition, or Panel | 4 | 1 | 2 | 2 | 7 | 16 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 1 | 2 | 5 | 2 | 6 | 16 |
419 | Powder Metallurgy Processes | 3 | 1 | 2 | 5 | 5 | 16 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 3 | 4 | 2 | 4 | 3 | 16 |
063 | Jewelry | 4 | 3 | 1 | 1 | 6 | 15 |
127 | Sugar, Starch, and Carbohydrates | 1 | 1 | 7 | 3 | 3 | 15 |
283 | Printed Matter | 1 | 5 | 3 | 3 | 3 | 15 |
318 | Electricity: Motive Power Systems | 4 | 0 | 4 | 4 | 3 | 15 |
323 | Electricity: Power Supply or Regulation Systems | 3 | 3 | 1 | 4 | 4 | 15 |
049 | Movable or Removable Closures | 5 | 4 | 1 | 1 | 3 | 14 |
108 | Horizontally Supported Planar Surfaces | 0 | 2 | 3 | 2 | 7 | 14 |
326 | Electronic Digital Logic Circuitry | 5 | 3 | 1 | 1 | 4 | 14 |
349 | Liquid Crystal Cells, Elements and Systems | 7 | 4 | 2 | 0 | 1 | 14 |
392 | Electric Resistance Heating Devices | 3 | 2 | 6 | 0 | 3 | 14 |
417 | Pumps | 3 | 3 | 0 | 4 | 4 | 14 |
116 | Signals and Indicators | 1 | 2 | 4 | 2 | 4 | 13 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 0 | 2 | 2 | 7 | 2 | 13 |
228 | Metal Fusion Bonding | 6 | 3 | 0 | 3 | 1 | 13 |
261 | Gas and Liquid Contact Apparatus | 1 | 3 | 1 | 2 | 6 | 13 |
383 | Flexible Bags | 5 | 1 | 3 | 2 | 2 | 13 |
441 | Buoys, Rafts, and Aquatic Devices | 2 | 6 | 0 | 3 | 2 | 13 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 1 | 2 | 4 | 3 | 3 | 13 |
089 | Ordnance | 5 | 4 | 1 | 0 | 2 | 12 |
135 | Tent, Canopy, Umbrella, or Cane | 2 | 1 | 3 | 5 | 1 | 12 |
432 | Heating | 1 | 3 | 2 | 3 | 3 | 12 |
454 | Ventilation | 2 | 4 | 2 | 3 | 1 | 12 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 1 | 5 | 4 | 1 | 1 | 12 |
122 | Liquid Heaters and Vaporizers | 4 | 2 | 3 | 0 | 2 | 11 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 3 | 2 | 3 | 2 | 1 | 11 |
404 | Road Structure, Process, or Apparatus | 2 | 1 | 5 | 1 | 2 | 11 |
034 | Drying and Gas or Vapor Contact with Solids | 3 | 0 | 0 | 6 | 1 | 10 |
112 | Sewing | 2 | 0 | 2 | 2 | 4 | 10 |
169 | Fire Extinguishers | 3 | 0 | 0 | 4 | 3 | 10 |
203 | Distillation: Processes, Separatory | 1 | 1 | 6 | 2 | 0 | 10 |
281 | Books, Strips, and Leaves | 0 | 1 | 3 | 3 | 3 | 10 |
296 | Land Vehicles: Bodies and Tops | 5 | 1 | 2 | 0 | 2 | 10 |
336 | Inductor Devices | 3 | 0 | 2 | 3 | 2 | 10 |
408 | Cutting by Use of Rotating Axially Moving Tool | 6 | 0 | 1 | 2 | 1 | 10 |
505 | Superconductor Technology: Apparatus, Material, Process | 1 | 3 | 2 | 3 | 1 | 10 |
055 | Gas Separation | 0 | 4 | 5 | 0 | 0 | 9 |
074 | Machine Element or Mechanism | 3 | 1 | 1 | 2 | 2 | 9 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 4 | 1 | 3 | 0 | 1 | 9 |
136 | Batteries: Thermoelectric and Photoelectric | 2 | 1 | 3 | 1 | 2 | 9 |
138 | Pipes and Tubular Conduits | 3 | 3 | 1 | 1 | 1 | 9 |
190 | Trunks and Hand-Carried Luggage | 4 | 0 | 2 | 0 | 3 | 9 |
200 | Electricity: Circuit Makers and Breakers | 1 | 5 | 2 | 1 | 0 | 9 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 4 | 2 | 1 | 1 | 1 | 9 |
420 | Alloys or Metallic Compositions | 3 | 1 | 1 | 1 | 3 | 9 |
472 | Amusement Devices | 1 | 2 | 4 | 1 | 1 | 9 |
100 | Presses | 1 | 2 | 4 | 0 | 1 | 8 |
126 | Stoves and Furnaces | 2 | 0 | 1 | 3 | 2 | 8 |
180 | Motor Vehicles | 1 | 2 | 1 | 1 | 3 | 8 |
181 | Acoustics | 0 | 1 | 2 | 3 | 2 | 8 |
227 | Elongated-Member-Driving Apparatus | 0 | 3 | 2 | 2 | 1 | 8 |
269 | Work Holders | 2 | 2 | 3 | 1 | 0 | 8 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 3 | 1 | 3 | 1 | 0 | 8 |
403 | Joints and Connections | 1 | 4 | 0 | 3 | 0 | 8 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 3 | 2 | 0 | 0 | 3 | 8 |
149 | Explosive and Thermic Compositions or Charges | 4 | 0 | 2 | 0 | 1 | 7 |
177 | Weighing Scales | 1 | 0 | 2 | 4 | 0 | 7 |
236 | Automatic Temperature and Humidity Regulation | 1 | 1 | 1 | 0 | 4 | 7 |
279 | Chucks or Sockets | 1 | 0 | 2 | 2 | 2 | 7 |
338 | Electrical Resistors | 2 | 0 | 1 | 4 | 0 | 7 |
360 | Dynamic Magnetic Information Storage or Retrieval | 1 | 2 | 1 | 3 | 0 | 7 |
368 | Horology: Time Measuring Systems or Devices | 1 | 1 | 0 | 2 | 3 | 7 |
588 | Hazardous or Toxic Waste Destruction or Containment | 2 | 3 | 2 | 0 | 0 | 7 |
096 | Gas Separation: Apparatus | 0 | 0 | 2 | 2 | 2 | 6 |
124 | Mechanical Guns and Projectors | 3 | 2 | 0 | 1 | 0 | 6 |
131 | Tobacco | 1 | 3 | 2 | 0 | 0 | 6 |
164 | Metal Founding | 4 | 0 | 1 | 0 | 1 | 6 |
188 | Brakes | 1 | 1 | 0 | 1 | 3 | 6 |
192 | Clutches and Power-Stop Control | 2 | 0 | 0 | 4 | 0 | 6 |
256 | Fences | 0 | 3 | 1 | 0 | 2 | 6 |
277 | Seal for a Joint or Juncture | 1 | 1 | 1 | 2 | 1 | 6 |
347 | Incremental Printing of Symbolic Information | 1 | 0 | 2 | 1 | 2 | 6 |
400 | Typewriting Machines | 1 | 2 | 0 | 1 | 2 | 6 |
410 | Freight Accommodation On Freight Carrier | 1 | 2 | 0 | 1 | 2 | 6 |
056 | Harvesters | 0 | 1 | 0 | 2 | 2 | 5 |
068 | Textiles: Fluid Treating Apparatus | 0 | 1 | 0 | 2 | 2 | 5 |
071 | Chemistry: Fertilizers | 0 | 3 | 2 | 0 | 0 | 5 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 1 | 1 | 0 | 0 | 3 | 5 |
178 | Telegraphy | 2 | 0 | 2 | 1 | 0 | 5 |
329 | Demodulators | 2 | 1 | 2 | 0 | 0 | 5 |
396 | Photography | 0 | 2 | 1 | 2 | 0 | 5 |
399 | Electrophotography | 1 | 1 | 1 | 2 | 0 | 5 |
415 | Rotary Kinetic Fluid Motors or Pumps | 0 | 1 | 3 | 1 | 0 | 5 |
452 | Butchering | 1 | 1 | 1 | 1 | 1 | 5 |
475 | Planetary Gear Transmission Systems or Components | 1 | 0 | 1 | 2 | 1 | 5 |
027 | Undertaking | 0 | 2 | 0 | 1 | 1 | 4 |
037 | Excavating | 2 | 1 | 0 | 0 | 1 | 4 |
042 | Firearms | 0 | 3 | 0 | 0 | 1 | 4 |
051 | Abrasive Tool Making Process, Material, or Composition | 2 | 1 | 1 | 0 | 0 | 4 |
082 | Turning (e.g., for metal working) | 0 | 0 | 2 | 1 | 1 | 4 |
144 | Woodworking | 2 | 1 | 0 | 0 | 1 | 4 |
225 | Severing by Tearing or Breaking | 2 | 0 | 1 | 1 | 0 | 4 |
332 | Modulators | 0 | 0 | 2 | 1 | 1 | 4 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 0 | 0 | 1 | 3 | 0 | 4 |
402 | Binder Device Releasably Engaging Aperture or Notch of Sheet | 1 | 1 | 1 | 0 | 1 | 4 |
440 | Marine Propulsion | 0 | 1 | 2 | 0 | 1 | 4 |
028 | Textiles: Manufacturing | 0 | 0 | 1 | 1 | 1 | 3 |
048 | Gas: Heating and Illuminating | 0 | 0 | 2 | 1 | 0 | 3 |
054 | Harness (for animals) | 0 | 1 | 0 | 1 | 1 | 3 |
059 | Chain, Staple, and Horseshoe Making | 0 | 1 | 0 | 0 | 2 | 3 |
139 | Textiles: Weaving | 0 | 0 | 1 | 1 | 1 | 3 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 0 | 0 | 0 | 0 | 3 | 3 |
194 | Check-Actuated Control Mechanisms | 0 | 0 | 2 | 1 | 0 | 3 |
202 | Distillation: Apparatus | 0 | 2 | 1 | 0 | 0 | 3 |
232 | Deposit and Collection Receptacles | 0 | 1 | 1 | 1 | 0 | 3 |
290 | Prime-Mover Dynamo Plants | 0 | 0 | 1 | 0 | 2 | 3 |
305 | Wheel Substitutes for Land Vehicles | 0 | 0 | 0 | 0 | 3 | 3 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 0 | 0 | 1 | 2 | 0 | 3 |
355 | Photocopying | 0 | 2 | 1 | 0 | 0 | 3 |
409 | Gear Cutting, Milling, or Planing | 0 | 2 | 1 | 0 | 0 | 3 |
418 | Rotary Expansible Chamber Devices | 2 | 0 | 1 | 0 | 0 | 3 |
450 | Foundation Garments | 0 | 0 | 1 | 1 | 1 | 3 |
470 | Threaded, Headed Fastener, or Washer Making: Process and Apparatus | 2 | 0 | 1 | 0 | 0 | 3 |
001 | ** Classification Undetermined ** | 0 | 0 | 2 | 0 | 0 | 2 |
007 | Compound Hand Tools | 1 | 0 | 0 | 1 | 0 | 2 |
012 | Boot and Shoe Making | 0 | 1 | 0 | 1 | 0 | 2 |
023 | Chemistry: Physical Processes | 1 | 0 | 1 | 0 | 0 | 2 |
066 | Textiles: Knitting | 0 | 0 | 0 | 1 | 1 | 2 |
140 | Wireworking | 0 | 0 | 1 | 0 | 1 | 2 |
150 | Purses, Wallets, and Protective Covers | 1 | 0 | 0 | 0 | 1 | 2 |
152 | Resilient Tires and Wheels | 0 | 1 | 1 | 0 | 0 | 2 |
172 | Earth Working | 0 | 0 | 1 | 1 | 0 | 2 |
173 | Tool Driving or Impacting | 0 | 0 | 0 | 0 | 2 | 2 |
175 | Boring or Penetrating the Earth | 0 | 1 | 0 | 1 | 0 | 2 |
237 | Heating Systems | 0 | 0 | 0 | 1 | 1 | 2 |
249 | Static Molds | 0 | 0 | 0 | 2 | 0 | 2 |
266 | Metallurgical Apparatus | 0 | 1 | 0 | 1 | 0 | 2 |
267 | Spring Devices | 0 | 0 | 0 | 2 | 0 | 2 |
271 | Sheet Feeding or Delivering | 1 | 0 | 1 | 0 | 0 | 2 |
293 | Vehicle Fenders | 1 | 0 | 0 | 0 | 1 | 2 |
299 | Mining or In Situ Disintegration of Hard Material | 0 | 1 | 1 | 0 | 0 | 2 |
300 | Brush, Broom, and Mop Making | 0 | 0 | 1 | 1 | 0 | 2 |
301 | Land Vehicles: Wheels and Axles | 0 | 1 | 0 | 1 | 0 | 2 |
322 | Electricity: Single Generator Systems | 1 | 0 | 0 | 1 | 0 | 2 |
352 | Optics: Motion Pictures | 0 | 0 | 0 | 2 | 0 | 2 |
353 | Optics: Image Projectors | 1 | 1 | 0 | 0 | 0 | 2 |
373 | Industrial Electric Heating Furnaces | 0 | 0 | 0 | 2 | 0 | 2 |
388 | Electricity: Motor Control Systems | 1 | 0 | 0 | 1 | 0 | 2 |
407 | Cutters, for Shaping | 0 | 0 | 1 | 0 | 1 | 2 |
413 | Sheet Metal Container Making | 0 | 1 | 1 | 0 | 0 | 2 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 0 | 1 | 0 | 0 | 1 | 2 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 1 | 0 | 1 | 0 | 0 | 2 |
474 | Endless Belt Power Transmission Systems or Components | 0 | 1 | 0 | 0 | 1 | 2 |
014 | Bridges | 0 | 1 | 0 | 0 | 0 | 1 |
038 | Textiles: Ironing or Smoothing | 0 | 1 | 0 | 0 | 0 | 1 |
076 | Metal Tools and Implements, Making | 0 | 0 | 1 | 0 | 0 | 1 |
086 | Ammunition and Explosive-Charge Making | 1 | 0 | 0 | 0 | 0 | 1 |
087 | Textiles: Braiding, Netting, and Lace Making | 0 | 0 | 0 | 1 | 0 | 1 |
104 | Railways | 0 | 0 | 1 | 0 | 0 | 1 |
105 | Railway Rolling Stock | 1 | 0 | 0 | 0 | 0 | 1 |
109 | Safes, Bank Protection, or a Related Device | 0 | 0 | 0 | 0 | 1 | 1 |
159 | Concentrating Evaporators | 1 | 0 | 0 | 0 | 0 | 1 |
163 | Needle and Pin Making | 0 | 0 | 0 | 0 | 1 | 1 |
168 | Farriery | 0 | 0 | 0 | 1 | 0 | 1 |
184 | Lubrication | 0 | 0 | 0 | 1 | 0 | 1 |
191 | Electricity: Transmission To Vehicles | 0 | 0 | 1 | 0 | 0 | 1 |
212 | Traversing Hoists | 0 | 0 | 0 | 0 | 1 | 1 |
213 | Railway Draft Appliances | 0 | 0 | 0 | 0 | 1 | 1 |
246 | Railway Switches and Signals | 0 | 0 | 1 | 0 | 0 | 1 |
270 | Sheet-Material Associating | 0 | 0 | 0 | 0 | 1 | 1 |
303 | Fluid-Pressure and Analogous Brake Systems | 0 | 0 | 0 | 0 | 1 | 1 |
384 | Bearings | 1 | 0 | 0 | 0 | 0 | 1 |
406 | Conveyors: Fluid Current | 1 | 0 | 0 | 0 | 0 | 1 |
ALL | ALL CLASSES | 3092 | 3187 | 3767 | 3987 | 3889 | 17922 |
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