| 532 |
Organic Compounds (includes Classes 532-570) |
44 |
36 |
41 |
35 |
35 |
191 |
| 520 |
Synthetic Resins or Natural Rubbers (includes Classes 520-528) |
40 |
22 |
27 |
38 |
32 |
159 |
| 424 |
Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) |
37 |
25 |
32 |
22 |
35 |
151 |
| 435 |
Chemistry: Molecular Biology and Microbiology |
27 |
28 |
17 |
21 |
22 |
115 |
| 800 |
Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes |
23 |
27 |
15 |
17 |
14 |
96 |
| 428 |
Stock Material or Miscellaneous Articles |
15 |
18 |
17 |
16 |
23 |
89 |
| 252 |
Compositions |
7 |
9 |
14 |
14 |
25 |
69 |
| 106 |
Compositions: Coating or Plastic |
7 |
4 |
13 |
6 |
5 |
35 |
| 705 |
DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) |
2 |
7 |
7 |
8 |
11 |
35 |
| 430 |
Radiation Imagery Chemistry: Process, Composition, or Product Thereof |
5 |
8 |
9 |
6 |
4 |
32 |
| 451 |
Abrading |
10 |
4 |
5 |
5 |
3 |
27 |
| 264 |
Plastic and Nonmetallic Article Shaping or Treating: Processes |
4 |
3 |
6 |
6 |
4 |
23 |
| 324 |
Electricity: Measuring and Testing |
6 |
8 |
4 |
1 |
1 |
20 |
| 257 |
Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) |
6 |
6 |
2 |
2 |
3 |
19 |
| 356 |
Optics: Measuring and Testing |
2 |
6 |
2 |
4 |
4 |
18 |
| 422 |
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing |
3 |
4 |
4 |
3 |
4 |
18 |
| 438 |
Semiconductor Device Manufacturing: Process |
5 |
6 |
5 |
0 |
2 |
18 |
| 250 |
Radiant Energy |
2 |
3 |
5 |
2 |
5 |
17 |
| 423 |
Chemistry of Inorganic Compounds |
2 |
3 |
3 |
4 |
5 |
17 |
| 427 |
Coating Processes |
0 |
3 |
2 |
5 |
7 |
17 |
| 530 |
Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof |
1 |
4 |
0 |
3 |
9 |
17 |
| 436 |
Chemistry: Analytical and Immunological Testing |
2 |
5 |
2 |
3 |
3 |
15 |
| 507 |
Earth Boring, Well Treating, and Oil Field Chemistry |
0 |
0 |
1 |
1 |
13 |
15 |
| 210 |
Liquid Purification or Separation |
4 |
1 |
3 |
3 |
3 |
14 |
| 429 |
Chemistry: Electrical Current Producing Apparatus, Product, and Process |
3 |
2 |
3 |
4 |
2 |
14 |
| 156 |
Adhesive Bonding and Miscellaneous Chemical Manufacture |
3 |
4 |
2 |
0 |
4 |
13 |
| 235 |
Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) |
3 |
2 |
4 |
0 |
3 |
12 |
| 502 |
Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making |
4 |
2 |
2 |
2 |
2 |
12 |
| 073 |
Measuring and Testing |
2 |
1 |
3 |
3 |
2 |
11 |
| 510 |
Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions |
2 |
2 |
2 |
2 |
3 |
11 |
| 119 |
Animal Husbandry |
4 |
3 |
2 |
1 |
0 |
10 |
| 442 |
Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) |
1 |
1 |
1 |
4 |
3 |
10 |
| 482 |
Exercise Devices |
0 |
1 |
1 |
5 |
3 |
10 |
| 137 |
Fluid Handling |
1 |
0 |
2 |
4 |
1 |
8 |
| 095 |
Gas Separation: Processes |
3 |
0 |
3 |
0 |
1 |
7 |
| 358 |
Facsimile and Static Presentation Processing |
1 |
2 |
0 |
1 |
3 |
7 |
| 702 |
DP: Measuring, Calibrating, or Testing (Data Processing) |
2 |
1 |
2 |
2 |
0 |
7 |
| 083 |
Cutting |
0 |
2 |
0 |
2 |
2 |
6 |
| 205 |
Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions |
0 |
0 |
1 |
3 |
2 |
6 |
| 313 |
Electric Lamp and Discharge Devices |
2 |
1 |
2 |
0 |
1 |
6 |
| 340 |
Communications: Electrical |
2 |
0 |
1 |
2 |
1 |
6 |
| 359 |
Optical: Systems and Elements |
0 |
1 |
0 |
2 |
3 |
6 |
| 426 |
Food or Edible Material: Processes, Compositions, and Products |
1 |
2 |
2 |
0 |
1 |
6 |
| 585 |
Chemistry of Hydrocarbon Compounds |
1 |
2 |
1 |
1 |
1 |
6 |
| 604 |
Surgery (Medicators and Receptors) |
1 |
1 |
1 |
0 |
3 |
6 |
| 700 |
DP: Generic Control Systems or Specific Applications (Data Processing) |
0 |
1 |
2 |
3 |
0 |
6 |
| 052 |
Static Structures (e.g., Buildings) |
1 |
0 |
2 |
0 |
2 |
5 |
| 204 |
Chemistry: Electrical and Wave Energy |
2 |
0 |
2 |
1 |
0 |
5 |
| 347 |
Incremental Printing of Symbolic Information |
0 |
1 |
0 |
2 |
2 |
5 |
| 362 |
Illumination |
0 |
1 |
2 |
2 |
0 |
5 |
| 002 |
Apparel |
1 |
0 |
1 |
0 |
2 |
4 |
| 005 |
Beds |
2 |
0 |
0 |
1 |
1 |
4 |
| 057 |
Textiles: Spinning, Twisting, and Twining |
1 |
3 |
0 |
0 |
0 |
4 |
| 062 |
Refrigeration |
2 |
1 |
0 |
0 |
1 |
4 |
| 089 |
Ordnance |
1 |
2 |
0 |
0 |
1 |
4 |
| 096 |
Gas Separation: Apparatus |
0 |
0 |
3 |
1 |
0 |
4 |
| 099 |
Foods and Beverages: Apparatus |
1 |
0 |
2 |
1 |
0 |
4 |
| 219 |
Electric Heating |
1 |
2 |
0 |
0 |
1 |
4 |
| 280 |
Land Vehicles |
2 |
1 |
0 |
1 |
0 |
4 |
| 333 |
Wave Transmission Lines and Networks |
0 |
1 |
2 |
1 |
0 |
4 |
| 385 |
Optical Waveguides |
1 |
2 |
1 |
0 |
0 |
4 |
| 501 |
Compositions: Ceramic |
3 |
0 |
1 |
0 |
0 |
4 |
| 504 |
Plant Protecting and Regulating Compositions |
3 |
1 |
0 |
0 |
0 |
4 |
| 508 |
Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions |
0 |
1 |
1 |
1 |
1 |
4 |
| 701 |
DP: Vehicles, Navigation, and Relative Location (Data Processing) |
1 |
1 |
0 |
0 |
2 |
4 |
| 715 |
DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) |
1 |
0 |
1 |
1 |
1 |
4 |
| 008 |
Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers |
1 |
1 |
0 |
0 |
1 |
3 |
| 053 |
Package Making |
0 |
0 |
1 |
2 |
0 |
3 |
| 055 |
Gas Separation |
0 |
0 |
0 |
2 |
1 |
3 |
| 075 |
Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures |
0 |
0 |
1 |
0 |
2 |
3 |
| 128 |
Surgery (includes Class 600) |
2 |
0 |
0 |
0 |
1 |
3 |
| 162 |
Paper Making and Fiber Liberation |
0 |
3 |
0 |
0 |
0 |
3 |
| 166 |
Wells (shafts or deep borings in the earth, e.g., for oil and gas) |
0 |
0 |
0 |
0 |
3 |
3 |
| 244 |
Aeronautics and Astronautics |
0 |
0 |
1 |
0 |
2 |
3 |
| 292 |
Closure Fasteners |
0 |
2 |
0 |
0 |
1 |
3 |
| 382 |
Image Analysis |
0 |
0 |
0 |
3 |
0 |
3 |
| 411 |
Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener |
0 |
2 |
1 |
0 |
0 |
3 |
| 439 |
Electrical Connectors |
2 |
0 |
0 |
0 |
1 |
3 |
| 473 |
Games Using Tangible Projectile |
2 |
0 |
0 |
1 |
0 |
3 |
| 606 |
Surgery (instruments) |
0 |
0 |
1 |
2 |
0 |
3 |
| 004 |
Baths, Closets, Sinks, and Spittoons |
1 |
1 |
0 |
0 |
0 |
2 |
| 015 |
Brushing, Scrubbing, and General Cleaning |
0 |
0 |
1 |
0 |
1 |
2 |
| 019 |
Textiles: Fiber Preparation |
0 |
0 |
1 |
1 |
0 |
2 |
| 029 |
Metal Working |
0 |
1 |
1 |
0 |
0 |
2 |
| 033 |
Geometrical Instruments |
0 |
1 |
0 |
1 |
0 |
2 |
| 040 |
Card, Picture, or Sign Exhibiting |
0 |
0 |
0 |
1 |
1 |
2 |
| 043 |
Fishing, Trapping, and Vermin Destroying |
0 |
0 |
0 |
1 |
1 |
2 |
| 047 |
Plant Husbandry |
1 |
0 |
0 |
0 |
1 |
2 |
| 051 |
Abrasive Tool Making Process, Material, or Composition |
0 |
1 |
0 |
1 |
0 |
2 |
| 070 |
Locks |
1 |
1 |
0 |
0 |
0 |
2 |
| 081 |
Tools |
1 |
0 |
0 |
0 |
1 |
2 |
| 118 |
Coating Apparatus |
2 |
0 |
0 |
0 |
0 |
2 |
| 132 |
Toilet |
0 |
0 |
0 |
1 |
1 |
2 |
| 134 |
Cleaning and Liquid Contact with Solids |
0 |
1 |
0 |
1 |
0 |
2 |
| 136 |
Batteries: Thermoelectric and Photoelectric |
0 |
0 |
1 |
1 |
0 |
2 |
| 139 |
Textiles: Weaving |
1 |
1 |
0 |
0 |
0 |
2 |
| 164 |
Metal Founding |
2 |
0 |
0 |
0 |
0 |
2 |
| 169 |
Fire Extinguishers |
0 |
0 |
1 |
0 |
1 |
2 |
| 174 |
Electricity: Conductors and Insulators |
1 |
0 |
0 |
0 |
1 |
2 |
| 203 |
Distillation: Processes, Separatory |
0 |
0 |
1 |
0 |
1 |
2 |
| 206 |
Special Receptacle or Package |
0 |
1 |
0 |
0 |
1 |
2 |
| 220 |
Receptacles |
0 |
0 |
1 |
0 |
1 |
2 |
| 239 |
Fluid Sprinkling, Spraying, and Diffusing |
1 |
1 |
0 |
0 |
0 |
2 |
| 248 |
Supports (e.g., for holding articles, etc.) |
0 |
0 |
1 |
0 |
1 |
2 |
| 273 |
Amusement Devices: Games |
1 |
1 |
0 |
0 |
0 |
2 |
| 297 |
Chairs and Seats |
0 |
0 |
0 |
1 |
1 |
2 |
| 301 |
Land Vehicles: Wheels and Axles |
1 |
1 |
0 |
0 |
0 |
2 |
| 315 |
Electric Lamp and Discharge Devices: Systems |
0 |
0 |
1 |
0 |
1 |
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 |
1 |
0 |
0 |
1 |
0 |
2 |
| 351 |
Optics: Eye Examining, Vision Testing and Correcting |
1 |
0 |
1 |
0 |
0 |
2 |
| 361 |
Electricity: Electrical Systems and Devices |
0 |
0 |
2 |
0 |
0 |
2 |
| 370 |
Multiplex Communications |
0 |
1 |
1 |
0 |
0 |
2 |
| 372 |
Coherent Light Generators |
0 |
1 |
1 |
0 |
0 |
2 |
| 375 |
Pulse or Digital Communications |
1 |
0 |
0 |
1 |
0 |
2 |
| 379 |
Telephonic Communications |
0 |
0 |
0 |
1 |
1 |
2 |
| 414 |
Material or Article Handling |
0 |
2 |
0 |
0 |
0 |
2 |
| 433 |
Dentistry |
0 |
0 |
1 |
1 |
0 |
2 |
| 434 |
Education and Demonstration |
0 |
2 |
0 |
0 |
0 |
2 |
| 445 |
Electric Lamp or Space Discharge Component or Device Manufacturing |
1 |
0 |
0 |
0 |
1 |
2 |
| 602 |
Surgery: Splint, Brace, or Bandage |
1 |
0 |
1 |
0 |
0 |
2 |
| 703 |
DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) |
0 |
0 |
1 |
1 |
0 |
2 |
| 706 |
DP: Artificial Intelligence (Data Processing) |
1 |
0 |
0 |
1 |
0 |
2 |
| 707 |
DP: Database and File Management or Data Structures (Data Processing) |
0 |
0 |
1 |
0 |
1 |
2 |
| 708 |
Arithmetic Processing and Calculating (Electrical Computers) |
0 |
0 |
2 |
0 |
0 |
2 |
| 709 |
Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) |
1 |
0 |
0 |
0 |
1 |
2 |
| 713 |
Support (Electrical Computers and Digital Processing Systems) |
0 |
0 |
1 |
0 |
1 |
2 |
| 726 |
Information Security |
0 |
2 |
0 |
0 |
0 |
2 |
| 016 |
Miscellaneous Hardware |
0 |
0 |
0 |
1 |
0 |
1 |
| 024 |
Buckles, Buttons, Clasps, Etc. |
0 |
0 |
0 |
0 |
1 |
1 |
| 028 |
Textiles: Manufacturing |
1 |
0 |
0 |
0 |
0 |
1 |
| 030 |
Cutlery |
0 |
0 |
0 |
0 |
1 |
1 |
| 042 |
Firearms |
1 |
0 |
0 |
0 |
0 |
1 |
| 044 |
Fuel and Related Compositions |
0 |
1 |
0 |
0 |
0 |
1 |
| 056 |
Harvesters |
0 |
1 |
0 |
0 |
0 |
1 |
| 059 |
Chain, Staple, and Horseshoe Making |
0 |
1 |
0 |
0 |
0 |
1 |
| 076 |
Metal Tools and Implements, Making |
0 |
1 |
0 |
0 |
0 |
1 |
| 084 |
Music |
0 |
0 |
0 |
1 |
0 |
1 |
| 100 |
Presses |
0 |
0 |
1 |
0 |
0 |
1 |
| 101 |
Printing |
0 |
1 |
0 |
0 |
0 |
1 |
| 102 |
Ammunition and Explosives |
0 |
0 |
1 |
0 |
0 |
1 |
| 105 |
Railway Rolling Stock |
0 |
1 |
0 |
0 |
0 |
1 |
| 108 |
Horizontally Supported Planar Surfaces |
0 |
0 |
0 |
1 |
0 |
1 |
| 112 |
Sewing |
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 |
| 150 |
Purses, Wallets, and Protective Covers |
0 |
0 |
0 |
1 |
0 |
1 |
| 165 |
Heat Exchange |
1 |
0 |
0 |
0 |
0 |
1 |
| 182 |
Fire Escape, Ladder, or Scaffold |
0 |
0 |
0 |
0 |
1 |
1 |
| 187 |
Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle |
0 |
0 |
0 |
0 |
1 |
1 |
| 193 |
Conveyors, Chutes, Skids, Guides, and Ways |
0 |
1 |
0 |
0 |
0 |
1 |
| 208 |
Mineral Oils: Processes and Products |
0 |
0 |
1 |
0 |
0 |
1 |
| 209 |
Classifying, Separating, and Assorting Solids |
0 |
0 |
1 |
0 |
0 |
1 |
| 213 |
Railway Draft Appliances |
0 |
0 |
0 |
0 |
1 |
1 |
| 216 |
Etching a Substrate: Processes |
0 |
1 |
0 |
0 |
0 |
1 |
| 222 |
Dispensing (apparatus and process) |
0 |
1 |
0 |
0 |
0 |
1 |
| 236 |
Automatic Temperature and Humidity Regulation |
1 |
0 |
0 |
0 |
0 |
1 |
| 241 |
Solid Material Comminution or Disintegration |
1 |
0 |
0 |
0 |
0 |
1 |
| 242 |
Winding, Tensioning, or Guiding |
0 |
1 |
0 |
0 |
0 |
1 |
| 271 |
Sheet Feeding or Delivering |
0 |
1 |
0 |
0 |
0 |
1 |
| 294 |
Handling: Hand and Hoist-Line Implements |
0 |
0 |
1 |
0 |
0 |
1 |
| 312 |
Supports: Cabinet Structure |
1 |
0 |
0 |
0 |
0 |
1 |
| 338 |
Electrical Resistors |
0 |
0 |
0 |
1 |
0 |
1 |
| 341 |
Coded Data Generation or Conversion |
0 |
0 |
0 |
0 |
1 |
1 |
| 366 |
Agitating (e.g., of articles and materials) |
0 |
1 |
0 |
0 |
0 |
1 |
| 368 |
Horology: Time Measuring Systems or Devices |
1 |
0 |
0 |
0 |
0 |
1 |
| 374 |
Thermal Measuring and Testing |
1 |
0 |
0 |
0 |
0 |
1 |
| 383 |
Flexible Bags |
0 |
1 |
0 |
0 |
0 |
1 |
| 384 |
Bearings |
1 |
0 |
0 |
0 |
0 |
1 |
| 392 |
Electric Resistance Heating Devices |
1 |
0 |
0 |
0 |
0 |
1 |
| 396 |
Photography |
1 |
0 |
0 |
0 |
0 |
1 |
| 410 |
Freight Accommodation On Freight Carrier |
0 |
0 |
0 |
1 |
0 |
1 |
| 415 |
Rotary Kinetic Fluid Motors or Pumps |
1 |
0 |
0 |
0 |
0 |
1 |
| 417 |
Pumps |
1 |
0 |
0 |
0 |
0 |
1 |
| 425 |
Plastic Article or Earthenware Shaping or Treating: Apparatus |
0 |
0 |
0 |
1 |
0 |
1 |
| 446 |
Amusement Devices: Toys |
1 |
0 |
0 |
0 |
0 |
1 |
| 474 |
Endless Belt Power Transmission Systems or Components |
0 |
1 |
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 |
| 516 |
Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting |
0 |
1 |
0 |
0 |
0 |
1 |
| 711 |
Memory (Electrical Computers and Digital Processing Systems) |
0 |
0 |
1 |
0 |
0 |
1 |
| 714 |
Error Detection/Correction and Fault Detection/Recovery |
0 |
0 |
1 |
0 |
0 |
1 |
| 716 |
Computer-Aided Design and Analysis of Circuits and Semiconductor Masks |
0 |
0 |
1 |
0 |
0 |
1 |
| 717 |
DP: Software Development, Installation, and Management (Data Processing) |
0 |
0 |
0 |
1 |
0 |
1 |
| ALL |
ALL CLASSES |
357 |
330 |
325 |
311 |
367 |
1690 |