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Browse by Category: Main > Chemistry |
| Class Number |
Class Name |
Patents |
| 502 |
Catalyst, solid sorbent, or support therefor: product or process of making |
80,701 |
| 260 |
Chemistry of carbon compounds |
1,795 |
| 585 |
Chemistry of hydrocarbon compounds |
36,372 |
| 423 |
Chemistry of inorganic compounds |
79,680 |
| 436 |
Chemistry: analytical and immunological testing |
82,950 |
| 204 |
Chemistry: electrical and wave energy |
77,312 |
| 429 |
Chemistry: electrical current producing apparatus, product, and process |
58,605 |
| 71 |
Chemistry: fertilizers |
7,153 |
| 518 |
Chemistry: fischer-tropsch processes; or purification or recovery of products thereof |
3,726 |
| 435 |
Chemistry: molecular biology and microbiology |
305,467 |
| 530 |
Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof |
99,641 |
| 23 |
Chemistry: physical processes |
2,060 |
| 507 |
Earth boring, well treating, and oil field chemistry |
15,309 |
| 205 |
Electrolysis: processes, compositions used therein, and methods of preparing the compositions |
40,596 |
| 55 |
Gas separation |
36,320 |
| 96 |
Gas separation: apparatus |
22,310 |
| 95 |
Gas separation: processes |
20,934 |
| 556 |
Organic compounds -- part of the class 532-570 series |
27,395 |
| 558 |
Organic compounds -- part of the class 532-570 series |
25,686 |
| 560 |
Organic compounds -- part of the class 532-570 series |
51,583 |
| 562 |
Organic compounds -- part of the class 532-570 series |
35,894 |
| 564 |
Organic compounds -- part of the class 532-570 series |
47,457 |
| 568 |
Organic compounds -- part of the class 532-570 series |
54,134 |
| 570 |
Organic compounds -- part of the class 532-570 series |
8,073 |
| 554 |
Organic compounds -- part of the class 532-570 series |
11,138 |
| 552 |
Organic compounds -- part of the class 532-570 series |
10,860 |
| 549 |
Organic compounds -- part of the class 532-570 series |
51,451 |
| 532 |
Organic compounds -- part of the class 532-570 series |
4 |
| 534 |
Organic compounds -- part of the class 532-570 series |
19,976 |
| 536 |
Organic compounds -- part of the class 532-570 series |
93,897 |
| 540 |
Organic compounds -- part of the class 532-570 series |
31,659 |
| 544 |
Organic compounds -- part of the class 532-570 series |
91,595 |
| 546 |
Organic compounds -- part of the class 532-570 series |
92,471 |
| 548 |
Organic compounds -- part of the class 532-570 series |
88,668 |
| 987 |
Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system |
9,021 |
| 930 |
Peptide or protein sequence |
7,806 |
| 430 |
Radiation imagery chemistry: process, composition, or product thereof |
176,969 | |
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