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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 82,274
260 Chemistry of carbon compounds 1,796
585 Chemistry of hydrocarbon compounds 36,731
423 Chemistry of inorganic compounds 80,850
436 Chemistry: analytical and immunological testing 84,213
204 Chemistry: electrical and wave energy 77,983
429 Chemistry: electrical current producing apparatus, product, and process 60,256
71 Chemistry: fertilizers 7,189
518 Chemistry: fischer-tropsch processes; or purification or recovery of products thereof 3,771
435 Chemistry: molecular biology and microbiology 310,877
530 Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof 101,480
23 Chemistry: physical processes 2,071
507 Earth boring, well treating, and oil field chemistry 15,540
205 Electrolysis: processes, compositions used therein, and methods of preparing the compositions 40,896
55 Gas separation 37,097
96 Gas separation: apparatus 22,803
95 Gas separation: processes 21,290
556 Organic compounds -- part of the class 532-570 series 27,629
558 Organic compounds -- part of the class 532-570 series 25,786
560 Organic compounds -- part of the class 532-570 series 51,762
562 Organic compounds -- part of the class 532-570 series 36,149
564 Organic compounds -- part of the class 532-570 series 47,828
568 Organic compounds -- part of the class 532-570 series 54,456
570 Organic compounds -- part of the class 532-570 series 8,132
554 Organic compounds -- part of the class 532-570 series 11,248
552 Organic compounds -- part of the class 532-570 series 10,891
549 Organic compounds -- part of the class 532-570 series 51,841
532 Organic compounds -- part of the class 532-570 series 4
534 Organic compounds -- part of the class 532-570 series 20,022
536 Organic compounds -- part of the class 532-570 series 95,471
540 Organic compounds -- part of the class 532-570 series 31,880
544 Organic compounds -- part of the class 532-570 series 92,603
546 Organic compounds -- part of the class 532-570 series 93,321
548 Organic compounds -- part of the class 532-570 series 89,443
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 178,830
 
 
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