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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 |
82,176 |
| 260 |
Chemistry of carbon compounds |
1,796 |
| 585 |
Chemistry of hydrocarbon compounds |
36,694 |
| 423 |
Chemistry of inorganic compounds |
80,740 |
| 436 |
Chemistry: analytical and immunological testing |
84,065 |
| 204 |
Chemistry: electrical and wave energy |
77,926 |
| 429 |
Chemistry: electrical current producing apparatus, product, and process |
60,047 |
| 71 |
Chemistry: fertilizers |
7,185 |
| 518 |
Chemistry: fischer-tropsch processes; or purification or recovery of products thereof |
3,760 |
| 435 |
Chemistry: molecular biology and microbiology |
310,445 |
| 530 |
Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof |
101,329 |
| 23 |
Chemistry: physical processes |
2,071 |
| 507 |
Earth boring, well treating, and oil field chemistry |
15,509 |
| 205 |
Electrolysis: processes, compositions used therein, and methods of preparing the compositions |
40,877 |
| 55 |
Gas separation |
37,034 |
| 96 |
Gas separation: apparatus |
22,763 |
| 95 |
Gas separation: processes |
21,259 |
| 556 |
Organic compounds -- part of the class 532-570 series |
27,601 |
| 558 |
Organic compounds -- part of the class 532-570 series |
25,784 |
| 560 |
Organic compounds -- part of the class 532-570 series |
51,739 |
| 562 |
Organic compounds -- part of the class 532-570 series |
36,137 |
| 564 |
Organic compounds -- part of the class 532-570 series |
47,798 |
| 568 |
Organic compounds -- part of the class 532-570 series |
54,416 |
| 570 |
Organic compounds -- part of the class 532-570 series |
8,128 |
| 554 |
Organic compounds -- part of the class 532-570 series |
11,238 |
| 552 |
Organic compounds -- part of the class 532-570 series |
10,887 |
| 549 |
Organic compounds -- part of the class 532-570 series |
51,792 |
| 532 |
Organic compounds -- part of the class 532-570 series |
4 |
| 534 |
Organic compounds -- part of the class 532-570 series |
20,008 |
| 536 |
Organic compounds -- part of the class 532-570 series |
95,335 |
| 540 |
Organic compounds -- part of the class 532-570 series |
31,871 |
| 544 |
Organic compounds -- part of the class 532-570 series |
92,515 |
| 546 |
Organic compounds -- part of the class 532-570 series |
93,251 |
| 548 |
Organic compounds -- part of the class 532-570 series |
89,377 |
| 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 |
7,813 |
| 430 |
Radiation imagery chemistry: process, composition, or product thereof |
178,671 | |
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