166 |
Wells (shafts or deep borings in the earth, e.g., for oil and gas) |
26 |
36 |
31 |
35 |
38 |
166 |
424 |
Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) |
16 |
11 |
12 |
8 |
10 |
57 |
073 |
Measuring and Testing |
16 |
8 |
5 |
6 |
7 |
42 |
210 |
Liquid Purification or Separation |
6 |
11 |
10 |
4 |
10 |
41 |
198 |
Conveyors: Power-Driven |
12 |
8 |
4 |
10 |
6 |
40 |
532 |
Organic Compounds (includes Classes 532-570) |
10 |
11 |
6 |
4 |
6 |
37 |
175 |
Boring or Penetrating the Earth |
5 |
6 |
9 |
10 |
5 |
35 |
405 |
Hydraulic and Earth Engineering |
13 |
2 |
2 |
5 |
7 |
29 |
520 |
Synthetic Resins or Natural Rubbers (includes Classes 520-528) |
4 |
5 |
6 |
6 |
8 |
29 |
435 |
Chemistry: Molecular Biology and Microbiology |
4 |
2 |
4 |
8 |
5 |
23 |
705 |
DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) |
0 |
6 |
3 |
3 |
11 |
23 |
208 |
Mineral Oils: Processes and Products |
3 |
9 |
4 |
1 |
5 |
22 |
081 |
Tools |
7 |
4 |
0 |
2 |
3 |
16 |
507 |
Earth Boring, Well Treating, and Oil Field Chemistry |
5 |
3 |
3 |
2 |
3 |
16 |
114 |
Ships |
3 |
2 |
2 |
3 |
5 |
15 |
119 |
Animal Husbandry |
3 |
2 |
1 |
3 |
6 |
15 |
340 |
Communications: Electrical |
5 |
3 |
2 |
1 |
4 |
15 |
362 |
Illumination |
7 |
4 |
2 |
1 |
1 |
15 |
452 |
Butchering |
1 |
4 |
2 |
6 |
2 |
15 |
294 |
Handling: Hand and Hoist-Line Implements |
3 |
3 |
5 |
2 |
1 |
14 |
280 |
Land Vehicles |
4 |
1 |
3 |
2 |
3 |
13 |
285 |
Pipe Joints or Couplings |
4 |
3 |
2 |
1 |
3 |
13 |
043 |
Fishing, Trapping, and Vermin Destroying |
4 |
1 |
1 |
4 |
2 |
12 |
099 |
Foods and Beverages: Apparatus |
2 |
2 |
2 |
0 |
6 |
12 |
128 |
Surgery (includes Class 600) |
2 |
2 |
3 |
4 |
1 |
12 |
367 |
Communications, Electrical: Acoustic Wave Systems and Devices |
2 |
3 |
5 |
2 |
0 |
12 |
428 |
Stock Material or Miscellaneous Articles |
4 |
3 |
2 |
2 |
1 |
12 |
473 |
Games Using Tangible Projectile |
2 |
3 |
3 |
2 |
2 |
12 |
530 |
Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof |
1 |
2 |
7 |
2 |
0 |
12 |
414 |
Material or Article Handling |
1 |
2 |
2 |
3 |
3 |
11 |
502 |
Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making |
2 |
2 |
0 |
6 |
1 |
11 |
606 |
Surgery (instruments) |
7 |
0 |
1 |
1 |
2 |
11 |
700 |
DP: Generic Control Systems or Specific Applications (Data Processing) |
2 |
3 |
1 |
3 |
2 |
11 |
033 |
Geometrical Instruments |
4 |
1 |
4 |
0 |
1 |
10 |
052 |
Static Structures (e.g., Buildings) |
2 |
0 |
4 |
2 |
2 |
10 |
123 |
Internal-Combustion Engines |
1 |
0 |
5 |
0 |
4 |
10 |
134 |
Cleaning and Liquid Contact with Solids |
1 |
3 |
1 |
2 |
3 |
10 |
220 |
Receptacles |
2 |
3 |
0 |
0 |
5 |
10 |
440 |
Marine Propulsion |
2 |
2 |
1 |
2 |
3 |
10 |
604 |
Surgery (Medicators and Receptors) |
4 |
1 |
2 |
1 |
2 |
10 |
702 |
DP: Measuring, Calibrating, or Testing (Data Processing) |
1 |
3 |
2 |
4 |
0 |
10 |
062 |
Refrigeration |
1 |
2 |
2 |
2 |
2 |
9 |
248 |
Supports (e.g., for holding articles, etc.) |
3 |
0 |
2 |
3 |
1 |
9 |
422 |
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing |
1 |
1 |
2 |
2 |
3 |
9 |
585 |
Chemistry of Hydrocarbon Compounds |
0 |
0 |
4 |
2 |
3 |
9 |
221 |
Article Dispensing |
3 |
1 |
1 |
1 |
2 |
8 |
222 |
Dispensing (apparatus and process) |
2 |
2 |
2 |
0 |
2 |
8 |
254 |
Implements or Apparatus for Applying Pushing or Pulling Force |
0 |
2 |
2 |
1 |
3 |
8 |
264 |
Plastic and Nonmetallic Article Shaping or Treating: Processes |
0 |
2 |
2 |
1 |
3 |
8 |
404 |
Road Structure, Process, or Apparatus |
2 |
0 |
2 |
2 |
2 |
8 |
439 |
Electrical Connectors |
1 |
1 |
3 |
0 |
3 |
8 |
709 |
Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) |
1 |
0 |
0 |
5 |
2 |
8 |
800 |
Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes |
2 |
1 |
2 |
1 |
2 |
8 |
162 |
Paper Making and Fiber Liberation |
1 |
0 |
2 |
3 |
1 |
7 |
206 |
Special Receptacle or Package |
2 |
1 |
1 |
2 |
1 |
7 |
482 |
Exercise Devices |
1 |
0 |
2 |
2 |
2 |
7 |
623 |
Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor |
2 |
2 |
1 |
1 |
1 |
7 |
182 |
Fire Escape, Ladder, or Scaffold |
3 |
0 |
2 |
0 |
1 |
6 |
273 |
Amusement Devices: Games |
1 |
1 |
1 |
1 |
2 |
6 |
297 |
Chairs and Seats |
2 |
2 |
1 |
0 |
1 |
6 |
356 |
Optics: Measuring and Testing |
1 |
1 |
2 |
1 |
1 |
6 |
410 |
Freight Accommodation On Freight Carrier |
1 |
1 |
2 |
1 |
1 |
6 |
510 |
Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions |
3 |
0 |
1 |
1 |
1 |
6 |
607 |
Surgery: Light, Thermal, and Electrical Application |
0 |
1 |
1 |
3 |
1 |
6 |
002 |
Apparel |
3 |
1 |
0 |
0 |
1 |
5 |
004 |
Baths, Closets, Sinks, and Spittoons |
2 |
1 |
0 |
1 |
1 |
5 |
029 |
Metal Working |
3 |
0 |
0 |
1 |
1 |
5 |
030 |
Cutlery |
1 |
0 |
0 |
3 |
1 |
5 |
053 |
Package Making |
1 |
1 |
1 |
1 |
1 |
5 |
056 |
Harvesters |
1 |
0 |
0 |
1 |
3 |
5 |
131 |
Tobacco |
0 |
0 |
0 |
3 |
2 |
5 |
137 |
Fluid Handling |
2 |
1 |
1 |
1 |
0 |
5 |
139 |
Textiles: Weaving |
1 |
0 |
0 |
2 |
2 |
5 |
235 |
Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) |
3 |
0 |
1 |
0 |
1 |
5 |
250 |
Radiant Energy |
1 |
2 |
0 |
0 |
2 |
5 |
307 |
Electrical Transmission or Interconnection Systems |
0 |
1 |
0 |
4 |
0 |
5 |
359 |
Optical: Systems and Elements |
0 |
2 |
2 |
0 |
1 |
5 |
417 |
Pumps |
1 |
1 |
2 |
1 |
0 |
5 |
426 |
Food or Edible Material: Processes, Compositions, and Products |
1 |
3 |
0 |
0 |
1 |
5 |
015 |
Brushing, Scrubbing, and General Cleaning |
1 |
0 |
2 |
0 |
1 |
4 |
040 |
Card, Picture, or Sign Exhibiting |
0 |
0 |
1 |
1 |
2 |
4 |
084 |
Music |
0 |
2 |
1 |
0 |
1 |
4 |
101 |
Printing |
1 |
1 |
1 |
0 |
1 |
4 |
126 |
Stoves and Furnaces |
0 |
1 |
0 |
1 |
2 |
4 |
219 |
Electric Heating |
1 |
0 |
0 |
3 |
0 |
4 |
324 |
Electricity: Measuring and Testing |
0 |
0 |
0 |
2 |
2 |
4 |
436 |
Chemistry: Analytical and Immunological Testing |
0 |
1 |
2 |
0 |
1 |
4 |
701 |
DP: Vehicles, Navigation, and Relative Location (Data Processing) |
1 |
0 |
2 |
0 |
1 |
4 |
715 |
DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) |
1 |
0 |
1 |
0 |
2 |
4 |
016 |
Miscellaneous Hardware |
0 |
1 |
0 |
1 |
1 |
3 |
037 |
Excavating |
0 |
0 |
0 |
2 |
1 |
3 |
057 |
Textiles: Spinning, Twisting, and Twining |
1 |
0 |
1 |
0 |
1 |
3 |
070 |
Locks |
1 |
0 |
1 |
1 |
0 |
3 |
095 |
Gas Separation: Processes |
0 |
1 |
0 |
2 |
0 |
3 |
102 |
Ammunition and Explosives |
1 |
2 |
0 |
0 |
0 |
3 |
108 |
Horizontally Supported Planar Surfaces |
1 |
1 |
0 |
1 |
0 |
3 |
141 |
Fluent Material Handling, with Receiver or Receiver Coacting Means |
0 |
0 |
1 |
2 |
0 |
3 |
172 |
Earth Working |
1 |
0 |
0 |
1 |
1 |
3 |
174 |
Electricity: Conductors and Insulators |
1 |
0 |
1 |
1 |
0 |
3 |
229 |
Envelopes, Wrappers, and Paperboard Boxes |
0 |
1 |
0 |
0 |
2 |
3 |
239 |
Fluid Sprinkling, Spraying, and Diffusing |
1 |
1 |
1 |
0 |
0 |
3 |
242 |
Winding, Tensioning, or Guiding |
0 |
2 |
0 |
1 |
0 |
3 |
251 |
Valves and Valve Actuation |
1 |
2 |
0 |
0 |
0 |
3 |
252 |
Compositions |
1 |
1 |
1 |
0 |
0 |
3 |
296 |
Land Vehicles: Bodies and Tops |
0 |
0 |
0 |
3 |
0 |
3 |
310 |
Electrical Generator or Motor Structure |
1 |
1 |
0 |
1 |
0 |
3 |
366 |
Agitating (e.g., of articles and materials) |
0 |
1 |
0 |
0 |
2 |
3 |
370 |
Multiplex Communications |
0 |
0 |
1 |
0 |
2 |
3 |
381 |
Electrical Audio Signal Processing Systems and Devices |
1 |
0 |
1 |
0 |
1 |
3 |
382 |
Image Analysis |
0 |
0 |
1 |
0 |
2 |
3 |
385 |
Optical Waveguides |
0 |
1 |
1 |
1 |
0 |
3 |
403 |
Joints and Connections |
0 |
1 |
0 |
1 |
1 |
3 |
411 |
Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener |
2 |
1 |
0 |
0 |
0 |
3 |
455 |
Telecommunications |
1 |
0 |
1 |
0 |
1 |
3 |
463 |
Amusement Devices: Games |
1 |
0 |
2 |
0 |
0 |
3 |
464 |
Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts |
3 |
0 |
0 |
0 |
0 |
3 |
493 |
Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web |
2 |
1 |
0 |
0 |
0 |
3 |
602 |
Surgery: Splint, Brace, or Bandage |
0 |
0 |
1 |
1 |
1 |
3 |
707 |
DP: Database and File Management or Data Structures (Data Processing) |
1 |
1 |
0 |
0 |
1 |
3 |
027 |
Undertaking |
0 |
1 |
1 |
0 |
0 |
2 |
036 |
Boots, Shoes, and Leggings |
0 |
1 |
0 |
1 |
0 |
2 |
042 |
Firearms |
1 |
1 |
0 |
0 |
0 |
2 |
047 |
Plant Husbandry |
0 |
1 |
1 |
0 |
0 |
2 |
059 |
Chain, Staple, and Horseshoe Making |
1 |
0 |
0 |
1 |
0 |
2 |
060 |
Power Plants |
0 |
1 |
1 |
0 |
0 |
2 |
086 |
Ammunition and Explosive-Charge Making |
0 |
0 |
1 |
1 |
0 |
2 |
089 |
Ordnance |
0 |
0 |
1 |
0 |
1 |
2 |
096 |
Gas Separation: Apparatus |
1 |
0 |
0 |
1 |
0 |
2 |
127 |
Sugar, Starch, and Carbohydrates |
0 |
2 |
0 |
0 |
0 |
2 |
152 |
Resilient Tires and Wheels |
0 |
0 |
1 |
0 |
1 |
2 |
156 |
Adhesive Bonding and Miscellaneous Chemical Manufacture |
0 |
1 |
0 |
0 |
1 |
2 |
180 |
Motor Vehicles |
1 |
0 |
0 |
0 |
1 |
2 |
181 |
Acoustics |
0 |
1 |
1 |
0 |
0 |
2 |
211 |
Supports: Racks |
0 |
1 |
0 |
0 |
1 |
2 |
212 |
Traversing Hoists |
1 |
0 |
0 |
1 |
0 |
2 |
215 |
Bottles and Jars |
1 |
0 |
1 |
0 |
0 |
2 |
223 |
Apparel Apparatus |
1 |
0 |
0 |
0 |
1 |
2 |
224 |
Package and Article Carriers |
0 |
1 |
1 |
0 |
0 |
2 |
320 |
Electricity: Battery or Capacitor Charging or Discharging |
1 |
0 |
0 |
1 |
0 |
2 |
327 |
Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems |
1 |
0 |
1 |
0 |
0 |
2 |
330 |
Amplifiers |
1 |
1 |
0 |
0 |
0 |
2 |
342 |
Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) |
1 |
0 |
0 |
0 |
1 |
2 |
345 |
Computer Graphics Processing and Selective Visual Display Systems |
0 |
0 |
1 |
0 |
1 |
2 |
351 |
Optics: Eye Examining, Vision Testing and Correcting |
1 |
0 |
1 |
0 |
0 |
2 |
415 |
Rotary Kinetic Fluid Motors or Pumps |
0 |
1 |
0 |
0 |
1 |
2 |
416 |
Fluid Reaction Surfaces (i.e., Impellers) |
1 |
1 |
0 |
0 |
0 |
2 |
423 |
Chemistry of Inorganic Compounds |
0 |
0 |
0 |
0 |
2 |
2 |
427 |
Coating Processes |
0 |
0 |
0 |
1 |
1 |
2 |
433 |
Dentistry |
1 |
0 |
0 |
0 |
1 |
2 |
441 |
Buoys, Rafts, and Aquatic Devices |
2 |
0 |
0 |
0 |
0 |
2 |
518 |
Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof |
0 |
0 |
2 |
0 |
0 |
2 |
005 |
Beds |
1 |
0 |
0 |
0 |
0 |
1 |
014 |
Bridges |
0 |
1 |
0 |
0 |
0 |
1 |
024 |
Buckles, Buttons, Clasps, Etc. |
0 |
1 |
0 |
0 |
0 |
1 |
034 |
Drying and Gas or Vapor Contact with Solids |
0 |
0 |
1 |
0 |
0 |
1 |
044 |
Fuel and Related Compositions |
0 |
0 |
0 |
0 |
1 |
1 |
072 |
Metal Deforming |
1 |
0 |
0 |
0 |
0 |
1 |
074 |
Machine Element or Mechanism |
0 |
1 |
0 |
0 |
0 |
1 |
083 |
Cutting |
0 |
0 |
0 |
0 |
1 |
1 |
092 |
Expansible Chamber Devices |
0 |
0 |
1 |
0 |
0 |
1 |
110 |
Furnaces |
0 |
0 |
1 |
0 |
0 |
1 |
112 |
Sewing |
0 |
0 |
0 |
1 |
0 |
1 |
125 |
Stone Working |
1 |
0 |
0 |
0 |
0 |
1 |
135 |
Tent, Canopy, Umbrella, or Cane |
0 |
0 |
1 |
0 |
0 |
1 |
138 |
Pipes and Tubular Conduits |
0 |
1 |
0 |
0 |
0 |
1 |
160 |
Flexible or Portable Closure, Partition, or Panel |
0 |
0 |
0 |
0 |
1 |
1 |
165 |
Heat Exchange |
1 |
0 |
0 |
0 |
0 |
1 |
173 |
Tool Driving or Impacting |
0 |
0 |
1 |
0 |
0 |
1 |
177 |
Weighing Scales |
1 |
0 |
0 |
0 |
0 |
1 |
188 |
Brakes |
1 |
0 |
0 |
0 |
0 |
1 |
193 |
Conveyors, Chutes, Skids, Guides, and Ways |
1 |
0 |
0 |
0 |
0 |
1 |
200 |
Electricity: Circuit Makers and Breakers |
1 |
0 |
0 |
0 |
0 |
1 |
203 |
Distillation: Processes, Separatory |
0 |
0 |
1 |
0 |
0 |
1 |
204 |
Chemistry: Electrical and Wave Energy |
1 |
0 |
0 |
0 |
0 |
1 |
209 |
Classifying, Separating, and Assorting Solids |
1 |
0 |
0 |
0 |
0 |
1 |
216 |
Etching a Substrate: Processes |
1 |
0 |
0 |
0 |
0 |
1 |
225 |
Severing by Tearing or Breaking |
1 |
0 |
0 |
0 |
0 |
1 |
227 |
Elongated-Member-Driving Apparatus |
0 |
0 |
1 |
0 |
0 |
1 |
232 |
Deposit and Collection Receptacles |
1 |
0 |
0 |
0 |
0 |
1 |
236 |
Automatic Temperature and Humidity Regulation |
1 |
0 |
0 |
0 |
0 |
1 |
238 |
Railways: Surface Track |
0 |
0 |
1 |
0 |
0 |
1 |
241 |
Solid Material Comminution or Disintegration |
0 |
0 |
0 |
1 |
0 |
1 |
244 |
Aeronautics and Astronautics |
0 |
0 |
0 |
0 |
1 |
1 |
257 |
Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) |
0 |
1 |
0 |
0 |
0 |
1 |
261 |
Gas and Liquid Contact Apparatus |
0 |
0 |
0 |
0 |
1 |
1 |
266 |
Metallurgical Apparatus |
0 |
0 |
0 |
0 |
1 |
1 |
269 |
Work Holders |
0 |
1 |
0 |
0 |
0 |
1 |
271 |
Sheet Feeding or Delivering |
1 |
0 |
0 |
0 |
0 |
1 |
277 |
Seal for a Joint or Juncture |
0 |
1 |
0 |
0 |
0 |
1 |
283 |
Printed Matter |
0 |
0 |
0 |
0 |
1 |
1 |
301 |
Land Vehicles: Wheels and Axles |
1 |
0 |
0 |
0 |
0 |
1 |
312 |
Supports: Cabinet Structure |
0 |
0 |
1 |
0 |
0 |
1 |
315 |
Electric Lamp and Discharge Devices: Systems |
1 |
0 |
0 |
0 |
0 |
1 |
343 |
Communications: Radio Wave Antennas |
0 |
0 |
1 |
0 |
0 |
1 |
348 |
Television |
0 |
0 |
0 |
0 |
1 |
1 |
361 |
Electricity: Electrical Systems and Devices |
0 |
1 |
0 |
0 |
0 |
1 |
374 |
Thermal Measuring and Testing |
0 |
0 |
0 |
1 |
0 |
1 |
375 |
Pulse or Digital Communications |
0 |
0 |
0 |
1 |
0 |
1 |
378 |
X-Ray or Gamma Ray Systems or Devices |
1 |
0 |
0 |
0 |
0 |
1 |
383 |
Flexible Bags |
1 |
0 |
0 |
0 |
0 |
1 |
392 |
Electric Resistance Heating Devices |
0 |
0 |
0 |
1 |
0 |
1 |
398 |
Optical Communications |
0 |
1 |
0 |
0 |
0 |
1 |
425 |
Plastic Article or Earthenware Shaping or Treating: Apparatus |
0 |
0 |
0 |
0 |
1 |
1 |
432 |
Heating |
0 |
0 |
0 |
0 |
1 |
1 |
434 |
Education and Demonstration |
0 |
0 |
0 |
0 |
1 |
1 |
438 |
Semiconductor Device Manufacturing: Process |
1 |
0 |
0 |
0 |
0 |
1 |
446 |
Amusement Devices: Toys |
0 |
0 |
0 |
0 |
1 |
1 |
450 |
Foundation Garments |
0 |
0 |
0 |
1 |
0 |
1 |
451 |
Abrading |
0 |
0 |
0 |
1 |
0 |
1 |
454 |
Ventilation |
0 |
0 |
0 |
0 |
1 |
1 |
501 |
Compositions: Ceramic |
1 |
0 |
0 |
0 |
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 |
708 |
Arithmetic Processing and Calculating (Electrical Computers) |
1 |
0 |
0 |
0 |
0 |
1 |
713 |
Support (Electrical Computers and Digital Processing Systems) |
0 |
0 |
0 |
1 |
0 |
1 |
717 |
DP: Software Development, Installation, and Management (Data Processing) |
0 |
1 |
0 |
0 |
0 |
1 |
718 |
Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) |
1 |
0 |
0 |
0 |
0 |
1 |
ALL |
ALL CLASSES |
321 |
262 |
260 |
257 |
304 |
1404 |