A61K 31/57

Substituted in position 17 beta by a chain of two carbon atoms

Official title: substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone

A61K31/57 (Substituted in position 17 beta by a chain of two carbon atoms) appears on 4,466 US grants and 8,274 published applications in this corpus.

Search patents in A61K
Granted patents
4,466
Published applications
8,274
Assignees
2,778
Inventors
11,358
Latest grant
6 Oct 2026

Filings by year

A61K 31/57: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976110
1977100
197860
1979110
198080
198190
1982110
198380
198480
1985100
198690
198760
1988100
1989170
1990250
1991250
1992280
1993260
1994230
1995300
1996530
1997660
1998900
1999870
2000710
20016125
200266105
200364206
200436191
200535230
200642248
200744255
200843231
200942244
201086235
2011103268
2012139300
2013145305
2014228408
2015239423
2016207410
2017265438
2018256431
2019266467
2020262439
2021235452
2022211425
2023191483
2024198421
2025223340
2026121294

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