257 |
Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) |
1798 |
1519 |
1575 |
1457 |
1323 |
7672 |
438 |
Semiconductor Device Manufacturing: Process |
1240 |
1090 |
1147 |
1010 |
1043 |
5530 |
359 |
Optical: Systems and Elements |
819 |
785 |
972 |
823 |
767 |
4166 |
399 |
Electrophotography |
703 |
667 |
858 |
923 |
981 |
4132 |
345 |
Computer Graphics Processing and Selective Visual Display Systems |
761 |
705 |
1014 |
826 |
723 |
4029 |
347 |
Incremental Printing of Symbolic Information |
791 |
654 |
713 |
797 |
965 |
3920 |
428 |
Stock Material or Miscellaneous Articles |
1144 |
754 |
662 |
624 |
584 |
3768 |
369 |
Dynamic Information Storage or Retrieval |
622 |
472 |
795 |
705 |
676 |
3270 |
348 |
Television |
582 |
521 |
720 |
611 |
827 |
3261 |
365 |
Static Information Storage and Retrieval |
666 |
655 |
657 |
640 |
595 |
3213 |
358 |
Facsimile and Static Presentation Processing |
427 |
510 |
699 |
704 |
738 |
3078 |
123 |
Internal-Combustion Engines |
570 |
558 |
694 |
614 |
545 |
2981 |
430 |
Radiation Imagery Chemistry: Process, Composition, or Product Thereof |
726 |
512 |
613 |
585 |
538 |
2974 |
382 |
Image Analysis |
540 |
416 |
689 |
609 |
697 |
2951 |
250 |
Radiant Energy |
524 |
440 |
671 |
588 |
604 |
2827 |
455 |
Telecommunications |
349 |
447 |
802 |
644 |
580 |
2822 |
520 |
Synthetic Resins or Natural Rubbers (includes Classes 520-528) |
750 |
487 |
591 |
515 |
459 |
2802 |
360 |
Dynamic Magnetic Information Storage or Retrieval |
560 |
443 |
551 |
412 |
405 |
2371 |
439 |
Electrical Connectors |
465 |
429 |
543 |
457 |
459 |
2353 |
349 |
Liquid Crystal Cells, Elements and Systems |
538 |
497 |
458 |
382 |
414 |
2289 |
310 |
Electrical Generator or Motor Structure |
535 |
438 |
438 |
407 |
452 |
2270 |
385 |
Optical Waveguides |
436 |
456 |
490 |
458 |
417 |
2257 |
370 |
Multiplex Communications |
381 |
367 |
487 |
375 |
542 |
2152 |
361 |
Electricity: Electrical Systems and Devices |
397 |
324 |
388 |
389 |
438 |
1936 |
424 |
Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) |
407 |
336 |
417 |
348 |
321 |
1829 |
532 |
Organic Compounds (includes Classes 532-570) |
351 |
316 |
400 |
387 |
369 |
1823 |
073 |
Measuring and Testing |
332 |
338 |
375 |
356 |
377 |
1778 |
324 |
Electricity: Measuring and Testing |
339 |
303 |
399 |
378 |
336 |
1755 |
701 |
DP: Vehicles, Navigation, and Relative Location (Data Processing) |
344 |
358 |
326 |
336 |
362 |
1726 |
375 |
Pulse or Digital Communications |
354 |
306 |
401 |
317 |
333 |
1711 |
029 |
Metal Working |
369 |
343 |
373 |
338 |
261 |
1684 |
429 |
Chemistry: Electrical Current Producing Apparatus, Product, and Process |
368 |
280 |
312 |
312 |
315 |
1587 |
313 |
Electric Lamp and Discharge Devices |
367 |
303 |
345 |
303 |
264 |
1582 |
711 |
Memory (Electrical Computers and Digital Processing Systems) |
197 |
207 |
353 |
313 |
382 |
1452 |
435 |
Chemistry: Molecular Biology and Microbiology |
233 |
227 |
312 |
307 |
322 |
1401 |
356 |
Optics: Measuring and Testing |
241 |
217 |
253 |
292 |
320 |
1323 |
709 |
Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) |
157 |
170 |
316 |
320 |
327 |
1290 |
714 |
Error Detection/Correction and Fault Detection/Recovery |
208 |
170 |
300 |
282 |
318 |
1278 |
327 |
Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems |
286 |
235 |
253 |
253 |
232 |
1259 |
700 |
DP: Generic Control Systems or Specific Applications (Data Processing) |
248 |
247 |
320 |
235 |
197 |
1247 |
386 |
Television Signal Processing for Dynamic Recording or Reproducing |
214 |
150 |
263 |
295 |
297 |
1219 |
340 |
Communications: Electrical |
208 |
207 |
288 |
253 |
255 |
1211 |
318 |
Electricity: Motive Power Systems |
191 |
201 |
323 |
214 |
191 |
1120 |
713 |
Support (Electrical Computers and Digital Processing Systems) |
129 |
141 |
273 |
275 |
296 |
1114 |
180 |
Motor Vehicles |
180 |
229 |
220 |
233 |
241 |
1103 |
702 |
DP: Measuring, Calibrating, or Testing (Data Processing) |
199 |
209 |
250 |
212 |
185 |
1055 |
060 |
Power Plants |
206 |
219 |
269 |
174 |
167 |
1035 |
372 |
Coherent Light Generators |
275 |
213 |
198 |
119 |
181 |
986 |
362 |
Illumination |
164 |
155 |
207 |
245 |
211 |
982 |
280 |
Land Vehicles |
158 |
152 |
169 |
211 |
267 |
957 |
219 |
Electric Heating |
211 |
190 |
218 |
147 |
129 |
895 |
396 |
Photography |
265 |
145 |
143 |
109 |
225 |
887 |
707 |
DP: Database and File Management or Data Structures (Data Processing) |
167 |
114 |
209 |
197 |
173 |
860 |
128 |
Surgery (includes Class 600) |
210 |
170 |
165 |
156 |
154 |
855 |
710 |
Input/Output (Electrical Computers and Digital Processing Systems) |
227 |
144 |
181 |
133 |
162 |
847 |
333 |
Wave Transmission Lines and Networks |
216 |
194 |
160 |
123 |
152 |
845 |
156 |
Adhesive Bonding and Miscellaneous Chemical Manufacture |
245 |
170 |
145 |
118 |
133 |
811 |
355 |
Photocopying |
205 |
154 |
180 |
135 |
129 |
803 |
174 |
Electricity: Conductors and Insulators |
209 |
148 |
149 |
149 |
146 |
801 |
343 |
Communications: Radio Wave Antennas |
112 |
146 |
211 |
159 |
171 |
799 |
235 |
Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) |
142 |
128 |
173 |
153 |
169 |
765 |
315 |
Electric Lamp and Discharge Devices: Systems |
193 |
145 |
169 |
119 |
116 |
742 |
427 |
Coating Processes |
223 |
146 |
104 |
137 |
132 |
742 |
353 |
Optics: Image Projectors |
113 |
112 |
189 |
189 |
138 |
741 |
341 |
Coded Data Generation or Conversion |
138 |
102 |
151 |
156 |
176 |
723 |
720 |
Dynamic Optical Information Storage or Retrieval |
126 |
134 |
159 |
142 |
118 |
679 |
451 |
Abrading |
165 |
152 |
156 |
110 |
76 |
659 |
062 |
Refrigeration |
164 |
151 |
131 |
114 |
97 |
657 |
296 |
Land Vehicles: Bodies and Tops |
128 |
109 |
150 |
132 |
137 |
656 |
252 |
Compositions |
154 |
95 |
126 |
133 |
140 |
648 |
264 |
Plastic and Nonmetallic Article Shaping or Treating: Processes |
190 |
109 |
124 |
100 |
113 |
636 |
716 |
DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) |
131 |
101 |
127 |
136 |
140 |
635 |
330 |
Amplifiers |
114 |
129 |
127 |
122 |
137 |
629 |
398 |
Optical Communications |
93 |
66 |
162 |
146 |
136 |
603 |
704 |
DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) |
93 |
79 |
152 |
137 |
129 |
590 |
074 |
Machine Element or Mechanism |
128 |
109 |
120 |
106 |
117 |
580 |
381 |
Electrical Audio Signal Processing Systems and Devices |
127 |
95 |
138 |
97 |
101 |
558 |
715 |
DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) |
88 |
94 |
119 |
141 |
109 |
551 |
378 |
X-Ray or Gamma Ray Systems or Devices |
79 |
91 |
143 |
115 |
114 |
542 |
384 |
Bearings |
127 |
97 |
115 |
106 |
84 |
529 |
084 |
Music |
84 |
78 |
99 |
120 |
146 |
527 |
705 |
DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) |
26 |
71 |
129 |
115 |
183 |
524 |
106 |
Compositions: Coating or Plastic |
112 |
78 |
97 |
135 |
94 |
516 |
473 |
Games Using Tangible Projectile |
99 |
82 |
120 |
114 |
94 |
509 |
271 |
Sheet Feeding or Delivering |
79 |
67 |
89 |
95 |
176 |
506 |
400 |
Typewriting Machines |
110 |
103 |
114 |
98 |
70 |
495 |
200 |
Electricity: Circuit Makers and Breakers |
115 |
93 |
112 |
103 |
69 |
492 |
242 |
Winding, Tensioning, or Guiding |
105 |
122 |
108 |
86 |
69 |
490 |
148 |
Metal Treatment |
144 |
85 |
77 |
79 |
99 |
484 |
422 |
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing |
95 |
75 |
62 |
95 |
110 |
437 |
326 |
Electronic Digital Logic Circuitry |
101 |
71 |
67 |
94 |
100 |
433 |
363 |
Electric Power Conversion Systems |
77 |
76 |
87 |
94 |
80 |
414 |
331 |
Oscillators |
94 |
55 |
91 |
91 |
81 |
412 |
210 |
Liquid Purification or Separation |
74 |
76 |
82 |
98 |
78 |
408 |
204 |
Chemistry: Electrical and Wave Energy |
109 |
76 |
69 |
78 |
72 |
404 |
463 |
Amusement Devices: Games |
107 |
91 |
76 |
61 |
69 |
404 |
165 |
Heat Exchange |
83 |
83 |
102 |
82 |
52 |
402 |
477 |
Interrelated Power Delivery Controls, Including Engine Control |
87 |
87 |
66 |
87 |
72 |
399 |
101 |
Printing |
147 |
88 |
87 |
40 |
34 |
396 |
445 |
Electric Lamp or Space Discharge Component or Device Manufacturing |
93 |
88 |
96 |
74 |
39 |
390 |
604 |
Surgery (Medicators and Receptors) |
81 |
57 |
72 |
91 |
89 |
390 |
425 |
Plastic Article or Earthenware Shaping or Treating: Apparatus |
79 |
43 |
93 |
85 |
88 |
388 |
323 |
Electricity: Power Supply or Regulation Systems |
49 |
62 |
87 |
100 |
77 |
375 |
423 |
Chemistry of Inorganic Compounds |
77 |
74 |
98 |
58 |
66 |
373 |
440 |
Marine Propulsion |
84 |
86 |
65 |
71 |
66 |
372 |
117 |
Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor |
65 |
59 |
71 |
88 |
84 |
367 |
072 |
Metal Deforming |
75 |
52 |
89 |
76 |
68 |
360 |
501 |
Compositions: Ceramic |
83 |
68 |
71 |
71 |
67 |
360 |
118 |
Coating Apparatus |
93 |
75 |
57 |
60 |
74 |
359 |
342 |
Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) |
77 |
49 |
79 |
65 |
88 |
358 |
379 |
Telephonic Communications |
109 |
84 |
73 |
49 |
39 |
354 |
336 |
Inductor Devices |
63 |
84 |
72 |
67 |
65 |
351 |
475 |
Planetary Gear Transmission Systems or Components |
79 |
66 |
77 |
65 |
59 |
346 |
502 |
Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making |
65 |
67 |
71 |
62 |
63 |
328 |
380 |
Cryptography |
37 |
41 |
72 |
93 |
83 |
326 |
320 |
Electricity: Battery or Capacitor Charging or Discharging |
77 |
46 |
63 |
55 |
82 |
323 |
297 |
Chairs and Seats |
67 |
60 |
70 |
55 |
59 |
311 |
137 |
Fluid Handling |
77 |
69 |
67 |
55 |
38 |
306 |
417 |
Pumps |
93 |
51 |
63 |
40 |
48 |
295 |
192 |
Clutches and Power-Stop Control |
78 |
51 |
71 |
52 |
42 |
294 |
228 |
Metal Fusion Bonding |
92 |
70 |
56 |
28 |
48 |
294 |
351 |
Optics: Eye Examining, Vision Testing and Correcting |
51 |
26 |
41 |
87 |
87 |
292 |
152 |
Resilient Tires and Wheels |
69 |
42 |
62 |
59 |
48 |
280 |
307 |
Electrical Transmission or Interconnection Systems |
56 |
22 |
65 |
61 |
75 |
279 |
703 |
DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) |
36 |
40 |
72 |
57 |
66 |
271 |
474 |
Endless Belt Power Transmission Systems or Components |
55 |
50 |
70 |
50 |
39 |
264 |
251 |
Valves and Valve Actuation |
60 |
62 |
61 |
40 |
37 |
260 |
530 |
Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof |
34 |
35 |
56 |
60 |
65 |
250 |
188 |
Brakes |
42 |
48 |
42 |
62 |
55 |
249 |
134 |
Cleaning and Liquid Contact with Solids |
67 |
51 |
37 |
49 |
41 |
245 |
216 |
Etching a Substrate: Processes |
47 |
42 |
58 |
48 |
47 |
242 |
335 |
Electricity: Magnetically Operated Switches, Magnets, and Electromagnets |
56 |
68 |
61 |
30 |
24 |
239 |
726 |
Information Security |
23 |
19 |
51 |
61 |
84 |
238 |
717 |
DP: Software Development, Installation, and Management (Data Processing) |
47 |
39 |
66 |
44 |
38 |
234 |
239 |
Fluid Sprinkling, Spraying, and Diffusing |
71 |
47 |
48 |
32 |
34 |
232 |
426 |
Food or Edible Material: Processes, Compositions, and Products |
77 |
38 |
57 |
34 |
26 |
232 |
712 |
Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) |
59 |
36 |
45 |
36 |
52 |
228 |
205 |
Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions |
68 |
39 |
37 |
41 |
39 |
224 |
303 |
Fluid-Pressure and Analogous Brake Systems |
37 |
50 |
45 |
51 |
37 |
220 |
725 |
Interactive Video Distribution Systems |
35 |
31 |
68 |
39 |
41 |
214 |
415 |
Rotary Kinetic Fluid Motors or Pumps |
64 |
48 |
37 |
36 |
28 |
213 |
418 |
Rotary Expansible Chamber Devices |
35 |
33 |
44 |
44 |
55 |
211 |
277 |
Seal for a Joint or Juncture |
57 |
42 |
55 |
30 |
23 |
207 |
198 |
Conveyors: Power-Driven |
61 |
36 |
37 |
30 |
40 |
204 |
606 |
Surgery (instruments) |
41 |
34 |
55 |
36 |
35 |
201 |
164 |
Metal Founding |
47 |
51 |
45 |
34 |
17 |
194 |
075 |
Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures |
42 |
40 |
34 |
41 |
31 |
188 |
414 |
Material or Article Handling |
47 |
28 |
52 |
24 |
35 |
186 |
436 |
Chemistry: Analytical and Immunological Testing |
43 |
26 |
31 |
38 |
47 |
185 |
708 |
Arithmetic Processing and Calculating (Electrical Computers) |
43 |
26 |
43 |
33 |
40 |
185 |
033 |
Geometrical Instruments |
41 |
33 |
33 |
36 |
38 |
181 |
368 |
Horology: Time Measuring Systems or Devices |
39 |
30 |
36 |
34 |
42 |
181 |
065 |
Glass Manufacturing |
53 |
37 |
41 |
17 |
31 |
179 |
112 |
Sewing |
40 |
32 |
29 |
31 |
29 |
161 |
464 |
Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts |
33 |
15 |
34 |
37 |
42 |
161 |
248 |
Supports (e.g., for holding articles, etc.) |
39 |
35 |
23 |
39 |
24 |
160 |
290 |
Prime-Mover Dynamo Plants |
32 |
39 |
26 |
27 |
35 |
159 |
503 |
Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor |
48 |
31 |
28 |
22 |
26 |
155 |
206 |
Special Receptacle or Package |
25 |
26 |
38 |
26 |
39 |
154 |
053 |
Package Making |
31 |
27 |
37 |
21 |
31 |
147 |
270 |
Sheet-Material Associating |
24 |
12 |
27 |
35 |
47 |
145 |
285 |
Pipe Joints or Couplings |
20 |
32 |
35 |
22 |
36 |
145 |
510 |
Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions |
32 |
24 |
37 |
22 |
29 |
144 |
015 |
Brushing, Scrubbing, and General Cleaning |
29 |
24 |
21 |
35 |
30 |
139 |
024 |
Buckles, Buttons, Clasps, Etc. |
25 |
15 |
34 |
34 |
31 |
139 |
055 |
Gas Separation |
30 |
21 |
26 |
21 |
38 |
136 |
800 |
Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes |
17 |
13 |
45 |
36 |
22 |
133 |
267 |
Spring Devices |
23 |
15 |
30 |
30 |
32 |
130 |
136 |
Batteries: Thermoelectric and Photoelectric |
52 |
20 |
15 |
22 |
17 |
126 |
401 |
Coating Implements with Material Supply |
21 |
30 |
31 |
23 |
17 |
122 |
083 |
Cutting |
33 |
20 |
29 |
14 |
25 |
121 |
138 |
Pipes and Tubular Conduits |
29 |
28 |
34 |
14 |
15 |
120 |
227 |
Elongated-Member-Driving Apparatus |
26 |
22 |
26 |
25 |
21 |
120 |
374 |
Thermal Measuring and Testing |
20 |
30 |
32 |
13 |
22 |
117 |
322 |
Electricity: Single Generator Systems |
33 |
10 |
24 |
30 |
19 |
116 |
338 |
Electrical Resistors |
15 |
17 |
30 |
27 |
25 |
114 |
222 |
Dispensing (apparatus and process) |
32 |
21 |
22 |
20 |
18 |
113 |
030 |
Cutlery |
22 |
18 |
23 |
25 |
22 |
110 |
034 |
Drying and Gas or Vapor Contact with Solids |
22 |
26 |
21 |
13 |
26 |
108 |
096 |
Gas Separation: Apparatus |
23 |
15 |
11 |
20 |
38 |
107 |
181 |
Acoustics |
28 |
20 |
5 |
16 |
35 |
104 |
066 |
Textiles: Knitting |
20 |
27 |
22 |
23 |
11 |
103 |
409 |
Gear Cutting, Milling, or Planing |
22 |
13 |
30 |
24 |
12 |
101 |
092 |
Expansible Chamber Devices |
27 |
13 |
23 |
22 |
15 |
100 |
187 |
Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle |
13 |
11 |
24 |
21 |
29 |
98 |
706 |
DP: Artificial Intelligence (Data Processing) |
12 |
20 |
29 |
11 |
26 |
98 |
718 |
Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) |
12 |
18 |
26 |
18 |
21 |
95 |
141 |
Fluent Material Handling, with Receiver or Receiver Coacting Means |
20 |
26 |
22 |
17 |
8 |
93 |
220 |
Receptacles |
17 |
22 |
28 |
12 |
14 |
93 |
241 |
Solid Material Comminution or Disintegration |
25 |
5 |
19 |
31 |
13 |
93 |
442 |
Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) |
34 |
12 |
13 |
14 |
20 |
93 |
052 |
Static Structures (e.g., Buildings) |
25 |
29 |
15 |
12 |
11 |
92 |
162 |
Paper Making and Fiber Liberation |
17 |
22 |
22 |
17 |
13 |
91 |
173 |
Tool Driving or Impacting |
15 |
17 |
24 |
13 |
22 |
91 |
016 |
Miscellaneous Hardware |
12 |
18 |
23 |
19 |
18 |
90 |
049 |
Movable or Removable Closures |
21 |
23 |
24 |
12 |
10 |
90 |
114 |
Ships |
21 |
19 |
20 |
12 |
16 |
88 |
008 |
Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers |
27 |
7 |
21 |
16 |
15 |
86 |
261 |
Gas and Liquid Contact Apparatus |
16 |
12 |
17 |
26 |
15 |
86 |
292 |
Closure Fasteners |
15 |
13 |
15 |
19 |
24 |
86 |
508 |
Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions |
31 |
16 |
10 |
12 |
9 |
78 |
434 |
Education and Demonstration |
25 |
20 |
15 |
6 |
10 |
76 |
454 |
Ventilation |
21 |
14 |
12 |
18 |
11 |
76 |
420 |
Alloys or Metallic Compositions |
26 |
14 |
8 |
8 |
17 |
73 |
177 |
Weighing Scales |
20 |
7 |
21 |
12 |
11 |
71 |
403 |
Joints and Connections |
17 |
21 |
14 |
4 |
15 |
71 |
002 |
Apparel |
16 |
23 |
14 |
4 |
12 |
69 |
411 |
Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener |
19 |
10 |
13 |
20 |
7 |
69 |
091 |
Motors: Expansible Chamber Type |
24 |
13 |
8 |
12 |
9 |
66 |
095 |
Gas Separation: Processes |
19 |
12 |
13 |
11 |
11 |
66 |
366 |
Agitating (e.g., of articles and materials) |
16 |
13 |
10 |
9 |
18 |
66 |
392 |
Electric Resistance Heating Devices |
7 |
19 |
25 |
9 |
6 |
66 |
416 |
Fluid Reaction Surfaces (i.e., Impellers) |
18 |
8 |
14 |
16 |
9 |
65 |
209 |
Classifying, Separating, and Assorting Solids |
25 |
11 |
12 |
6 |
10 |
64 |
493 |
Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web |
17 |
11 |
10 |
11 |
15 |
64 |
037 |
Excavating |
20 |
19 |
13 |
9 |
2 |
63 |
070 |
Locks |
10 |
16 |
9 |
11 |
17 |
63 |
476 |
Friction Gear Transmission Systems or Components |
17 |
18 |
13 |
8 |
6 |
62 |
719 |
Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) |
13 |
9 |
12 |
6 |
21 |
61 |
051 |
Abrasive Tool Making Process, Material, or Composition |
20 |
13 |
10 |
11 |
5 |
59 |
337 |
Electricity: Electrothermally or Thermally Actuated Switches |
13 |
8 |
15 |
11 |
12 |
59 |
419 |
Powder Metallurgy Processes |
14 |
12 |
17 |
13 |
3 |
59 |
293 |
Vehicle Fenders |
10 |
16 |
10 |
8 |
14 |
58 |
305 |
Wheel Substitutes for Land Vehicles |
14 |
14 |
11 |
11 |
7 |
57 |
433 |
Dentistry |
15 |
10 |
15 |
10 |
7 |
57 |
504 |
Plant Protecting and Regulating Compositions |
19 |
12 |
11 |
9 |
6 |
57 |
221 |
Article Dispensing |
19 |
7 |
10 |
8 |
12 |
56 |
244 |
Aeronautics and Astronautics |
21 |
12 |
8 |
11 |
3 |
55 |
301 |
Land Vehicles: Wheels and Axles |
11 |
8 |
12 |
10 |
13 |
54 |
376 |
Induced Nuclear Reactions: Processes, Systems, and Elements |
20 |
17 |
4 |
6 |
7 |
54 |
446 |
Amusement Devices: Toys |
14 |
7 |
10 |
11 |
12 |
54 |
623 |
Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor |
8 |
12 |
17 |
6 |
11 |
54 |
048 |
Gas: Heating and Illuminating |
11 |
4 |
11 |
11 |
16 |
53 |
367 |
Communications, Electrical: Acoustic Wave Systems and Devices |
7 |
5 |
8 |
12 |
19 |
51 |
004 |
Baths, Closets, Sinks, and Spittoons |
17 |
11 |
9 |
8 |
5 |
50 |
432 |
Heating |
14 |
9 |
8 |
7 |
12 |
50 |
483 |
Tool Changing |
7 |
6 |
14 |
15 |
7 |
49 |
194 |
Check-Actuated Control Mechanisms |
15 |
8 |
8 |
9 |
7 |
47 |
081 |
Tools |
8 |
10 |
11 |
13 |
4 |
46 |
266 |
Metallurgical Apparatus |
13 |
7 |
5 |
8 |
13 |
46 |
269 |
Work Holders |
8 |
6 |
14 |
11 |
7 |
46 |
585 |
Chemistry of Hydrocarbon Compounds |
8 |
10 |
7 |
3 |
17 |
45 |
056 |
Harvesters |
9 |
10 |
6 |
8 |
11 |
44 |
215 |
Bottles and Jars |
7 |
7 |
16 |
8 |
6 |
44 |
294 |
Handling: Hand and Hoist-Line Implements |
6 |
3 |
14 |
8 |
13 |
44 |
505 |
Superconductor Technology: Apparatus, Material, Process |
15 |
7 |
9 |
10 |
2 |
43 |
405 |
Hydraulic and Earth Engineering |
11 |
11 |
9 |
7 |
4 |
42 |
139 |
Textiles: Weaving |
7 |
13 |
8 |
5 |
8 |
41 |
236 |
Automatic Temperature and Humidity Regulation |
13 |
11 |
3 |
10 |
4 |
41 |
407 |
Cutters, for Shaping |
10 |
10 |
6 |
9 |
6 |
41 |
431 |
Combustion |
11 |
18 |
9 |
2 |
1 |
41 |
005 |
Beds |
4 |
11 |
15 |
7 |
3 |
40 |
099 |
Foods and Beverages: Apparatus |
16 |
9 |
5 |
8 |
2 |
40 |
453 |
Coin Handling |
9 |
4 |
9 |
8 |
10 |
40 |
218 |
High-Voltage Switches with Arc Preventing or Extinguishing Devices |
17 |
10 |
5 |
4 |
3 |
39 |
312 |
Supports: Cabinet Structure |
12 |
8 |
4 |
7 |
8 |
39 |
607 |
Surgery: Light, Thermal, and Electrical Application |
7 |
6 |
9 |
10 |
7 |
39 |
100 |
Presses |
5 |
10 |
13 |
6 |
4 |
38 |
184 |
Lubrication |
10 |
6 |
6 |
9 |
7 |
38 |
601 |
Surgery: Kinesitherapy |
8 |
3 |
7 |
10 |
10 |
38 |
602 |
Surgery: Splint, Brace, or Bandage |
7 |
9 |
7 |
7 |
8 |
38 |
036 |
Boots, Shoes, and Leggings |
20 |
4 |
6 |
3 |
4 |
37 |
273 |
Amusement Devices: Games |
8 |
7 |
8 |
5 |
7 |
35 |
408 |
Cutting by Use of Rotating Axially Moving Tool |
4 |
7 |
12 |
7 |
5 |
35 |
082 |
Turning (e.g., for metal working) |
5 |
9 |
9 |
3 |
7 |
33 |
208 |
Mineral Oils: Processes and Products |
7 |
9 |
3 |
6 |
8 |
33 |
377 |
Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems |
4 |
11 |
6 |
4 |
8 |
33 |
482 |
Exercise Devices |
6 |
5 |
7 |
7 |
8 |
33 |
059 |
Chain, Staple, and Horseshoe Making |
4 |
2 |
7 |
7 |
12 |
32 |
110 |
Furnaces |
7 |
9 |
7 |
4 |
5 |
32 |
119 |
Animal Husbandry |
9 |
2 |
8 |
4 |
7 |
30 |
332 |
Modulators |
7 |
3 |
3 |
11 |
6 |
30 |
057 |
Textiles: Spinning, Twisting, and Twining |
7 |
1 |
11 |
5 |
4 |
28 |
172 |
Earth Working |
6 |
9 |
6 |
3 |
4 |
28 |
125 |
Stone Working |
3 |
6 |
8 |
6 |
4 |
27 |
126 |
Stoves and Furnaces |
7 |
7 |
1 |
4 |
8 |
27 |
494 |
Imperforate Bowl: Centrifugal Separators |
7 |
6 |
4 |
5 |
5 |
27 |
492 |
Roll or Roller |
6 |
6 |
3 |
6 |
5 |
26 |
040 |
Card, Picture, or Sign Exhibiting |
5 |
7 |
2 |
2 |
9 |
25 |
329 |
Demodulators |
9 |
8 |
0 |
4 |
4 |
25 |
203 |
Distillation: Processes, Separatory |
7 |
3 |
4 |
8 |
2 |
24 |
383 |
Flexible Bags |
5 |
6 |
5 |
4 |
4 |
24 |
404 |
Road Structure, Process, or Apparatus |
8 |
5 |
0 |
6 |
5 |
24 |
516 |
Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting |
5 |
0 |
5 |
9 |
5 |
24 |
105 |
Railway Rolling Stock |
6 |
8 |
4 |
2 |
3 |
23 |
116 |
Signals and Indicators |
4 |
7 |
3 |
4 |
5 |
23 |
175 |
Boring or Penetrating the Earth |
4 |
8 |
5 |
2 |
3 |
22 |
249 |
Static Molds |
4 |
4 |
4 |
3 |
7 |
22 |
104 |
Railways |
3 |
4 |
3 |
7 |
4 |
21 |
132 |
Toilet |
1 |
5 |
5 |
5 |
5 |
21 |
102 |
Ammunition and Explosives |
5 |
3 |
2 |
6 |
4 |
20 |
122 |
Liquid Heaters and Vaporizers |
6 |
3 |
2 |
2 |
7 |
20 |
068 |
Textiles: Fluid Treating Apparatus |
3 |
3 |
4 |
4 |
5 |
19 |
160 |
Flexible or Portable Closure, Partition, or Panel |
6 |
2 |
2 |
2 |
7 |
19 |
212 |
Traversing Hoists |
2 |
1 |
1 |
7 |
8 |
19 |
131 |
Tobacco |
7 |
5 |
1 |
4 |
1 |
18 |
211 |
Supports: Racks |
4 |
3 |
4 |
4 |
3 |
18 |
279 |
Chucks or Sockets |
6 |
7 |
2 |
3 |
0 |
18 |
144 |
Woodworking |
2 |
1 |
2 |
5 |
7 |
17 |
224 |
Package and Article Carriers |
3 |
3 |
3 |
6 |
2 |
17 |
352 |
Optics: Motion Pictures |
7 |
9 |
1 |
0 |
0 |
17 |
063 |
Jewelry |
4 |
3 |
3 |
3 |
3 |
16 |
140 |
Wireworking |
2 |
1 |
5 |
3 |
5 |
16 |
226 |
Advancing Material of Indeterminate Length |
7 |
2 |
1 |
4 |
2 |
16 |
452 |
Butchering |
3 |
2 |
2 |
4 |
5 |
16 |
588 |
Hazardous or Toxic Waste Destruction or Containment |
2 |
4 |
3 |
5 |
2 |
16 |
108 |
Horizontally Supported Planar Surfaces |
3 |
3 |
7 |
0 |
2 |
15 |
043 |
Fishing, Trapping, and Vermin Destroying |
2 |
7 |
3 |
2 |
0 |
14 |
202 |
Distillation: Apparatus |
4 |
2 |
2 |
3 |
3 |
14 |
223 |
Apparel Apparatus |
3 |
3 |
0 |
1 |
6 |
13 |
044 |
Fuel and Related Compositions |
2 |
3 |
1 |
3 |
3 |
12 |
229 |
Envelopes, Wrappers, and Paperboard Boxes |
1 |
3 |
5 |
1 |
2 |
12 |
254 |
Implements or Apparatus for Applying Pushing or Pulling Force |
4 |
2 |
3 |
1 |
2 |
12 |
038 |
Textiles: Ironing or Smoothing |
3 |
1 |
4 |
2 |
1 |
11 |
028 |
Textiles: Manufacturing |
3 |
2 |
2 |
2 |
1 |
10 |
373 |
Industrial Electric Heating Furnaces |
2 |
2 |
4 |
0 |
2 |
10 |
124 |
Mechanical Guns and Projectors |
3 |
0 |
0 |
4 |
2 |
9 |
149 |
Explosive and Thermic Compositions or Charges |
2 |
4 |
2 |
0 |
1 |
9 |
237 |
Heating Systems |
3 |
3 |
2 |
1 |
0 |
9 |
299 |
Mining or In Situ Disintegration of Hard Material |
2 |
1 |
4 |
2 |
0 |
9 |
412 |
Bookbinding: Process and Apparatus |
2 |
3 |
0 |
2 |
2 |
9 |
472 |
Amusement Devices |
1 |
3 |
2 |
2 |
1 |
9 |
512 |
Perfume Compositions |
2 |
2 |
2 |
2 |
1 |
9 |
518 |
Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof |
4 |
3 |
2 |
0 |
0 |
9 |
076 |
Metal Tools and Implements, Making |
2 |
2 |
1 |
3 |
0 |
8 |
169 |
Fire Extinguishers |
2 |
2 |
1 |
2 |
1 |
8 |
388 |
Electricity: Motor Control Systems |
1 |
0 |
5 |
1 |
1 |
8 |
047 |
Plant Husbandry |
2 |
1 |
0 |
3 |
1 |
7 |
071 |
Chemistry: Fertilizers |
1 |
0 |
4 |
0 |
2 |
7 |
166 |
Wells (shafts or deep borings in the earth, e.g., for oil and gas) |
0 |
0 |
2 |
2 |
3 |
7 |
193 |
Conveyors, Chutes, Skids, Guides, and Ways |
0 |
1 |
1 |
3 |
2 |
7 |
234 |
Selective Cutting (e.g., Punching) |
1 |
0 |
3 |
1 |
2 |
7 |
402 |
Binder Device Releasably Engaging Aperture or Notch of Sheet |
3 |
1 |
1 |
1 |
1 |
7 |
441 |
Buoys, Rafts, and Aquatic Devices |
1 |
2 |
2 |
1 |
1 |
7 |
450 |
Foundation Garments |
2 |
1 |
2 |
1 |
1 |
7 |
014 |
Bridges |
2 |
2 |
0 |
1 |
1 |
6 |
127 |
Sugar, Starch, and Carbohydrates |
3 |
1 |
1 |
1 |
0 |
6 |
182 |
Fire Escape, Ladder, or Scaffold |
3 |
0 |
3 |
0 |
0 |
6 |
087 |
Textiles: Braiding, Netting, and Lace Making |
1 |
0 |
2 |
0 |
2 |
5 |
135 |
Tent, Canopy, Umbrella, or Cane |
3 |
0 |
0 |
2 |
0 |
5 |
191 |
Electricity: Transmission To Vehicles |
1 |
2 |
2 |
0 |
0 |
5 |
225 |
Severing by Tearing or Breaking |
1 |
2 |
1 |
0 |
1 |
5 |
246 |
Railway Switches and Signals |
0 |
1 |
0 |
3 |
1 |
5 |
283 |
Printed Matter |
1 |
0 |
0 |
1 |
3 |
5 |
346 |
Recorders |
2 |
3 |
0 |
0 |
0 |
5 |
406 |
Conveyors: Fluid Current |
0 |
1 |
1 |
3 |
0 |
5 |
410 |
Freight Accommodation On Freight Carrier |
1 |
0 |
1 |
0 |
3 |
5 |
157 |
Wheelwright Machines |
1 |
1 |
0 |
0 |
2 |
4 |
178 |
Telegraphy |
1 |
2 |
1 |
0 |
0 |
4 |
201 |
Distillation: Processes, Thermolytic |
1 |
3 |
0 |
0 |
0 |
4 |
213 |
Railway Draft Appliances |
0 |
1 |
1 |
0 |
2 |
4 |
470 |
Threaded, Headed Fastener, or Washer Making: Process and Apparatus |
1 |
0 |
0 |
2 |
1 |
4 |
506 |
Combinatorial Chemistry Technology: Method, Library, Apparatus |
2 |
2 |
0 |
0 |
0 |
4 |
001 |
** Classification Undetermined ** |
0 |
1 |
0 |
2 |
0 |
3 |
023 |
Chemistry: Physical Processes |
2 |
0 |
0 |
0 |
1 |
3 |
026 |
Textiles: Cloth Finishing |
0 |
1 |
0 |
1 |
1 |
3 |
089 |
Ordnance |
1 |
0 |
0 |
0 |
2 |
3 |
159 |
Concentrating Evaporators |
0 |
1 |
1 |
1 |
0 |
3 |
171 |
Unearthing Plants or Buried Objects |
1 |
2 |
0 |
0 |
0 |
3 |
190 |
Trunks and Hand-Carried Luggage |
0 |
1 |
1 |
1 |
0 |
3 |
256 |
Fences |
1 |
1 |
1 |
0 |
0 |
3 |
281 |
Books, Strips, and Leaves |
2 |
0 |
0 |
0 |
1 |
3 |
334 |
Tuners |
1 |
0 |
1 |
0 |
1 |
3 |
019 |
Textiles: Fiber Preparation |
0 |
0 |
1 |
0 |
1 |
2 |
042 |
Firearms |
0 |
1 |
1 |
0 |
0 |
2 |
054 |
Harness for Working Animal |
1 |
0 |
1 |
0 |
0 |
2 |
111 |
Planting |
0 |
0 |
0 |
1 |
1 |
2 |
186 |
Merchandising |
0 |
0 |
0 |
2 |
0 |
2 |
232 |
Deposit and Collection Receptacles |
1 |
0 |
0 |
1 |
0 |
2 |
300 |
Brush, Broom, and Mop Making |
0 |
0 |
0 |
1 |
1 |
2 |
007 |
Compound Hand Tools |
0 |
0 |
0 |
1 |
0 |
1 |
027 |
Undertaking |
0 |
0 |
0 |
1 |
0 |
1 |
069 |
Leather Manufactures |
0 |
1 |
0 |
0 |
0 |
1 |
086 |
Ammunition and Explosive-Charge Making |
0 |
0 |
0 |
0 |
1 |
1 |
109 |
Safes, Bank Protection, or a Related Device |
0 |
0 |
1 |
0 |
0 |
1 |
150 |
Purses, Wallets, and Protective Covers |
1 |
0 |
0 |
0 |
0 |
1 |
185 |
Motors: Spring, Weight, or Animal Powered |
1 |
0 |
0 |
0 |
0 |
1 |
196 |
Mineral Oils: Apparatus |
0 |
0 |
1 |
0 |
0 |
1 |
238 |
Railways: Surface Track |
1 |
0 |
0 |
0 |
0 |
1 |
260 |
Chemistry of Carbon Compounds |
0 |
0 |
0 |
0 |
1 |
1 |
289 |
Knots and Knot Tying |
1 |
0 |
0 |
0 |
0 |
1 |
413 |
Sheet Metal Container Making |
0 |
0 |
0 |
0 |
1 |
1 |
462 |
Books, Strips, and Leaves for Manifolding |
0 |
0 |
0 |
0 |
1 |
1 |
ALL |
ALL CLASSES |
35348 |
30341 |
36807 |
33354 |
33682 |
169532 |