C07D 205/00
Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only
Official title: Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
C07D205/00 (Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only) appears on 2,287 US grants and 1,799 published applications in this corpus.
Search patents in C07D- Granted patents
- 2,287
- Published applications
- 1,799
- Assignees
- 859
- Inventors
- 5,986
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 31 | 0 |
| 1978 | 47 | 0 |
| 1979 | 49 | 0 |
| 1980 | 47 | 0 |
| 1981 | 50 | 0 |
| 1982 | 42 | 0 |
| 1983 | 34 | 0 |
| 1984 | 50 | 0 |
| 1985 | 63 | 0 |
| 1986 | 60 | 0 |
| 1987 | 54 | 0 |
| 1988 | 54 | 0 |
| 1989 | 47 | 0 |
| 1990 | 42 | 0 |
| 1991 | 35 | 0 |
| 1992 | 37 | 0 |
| 1993 | 35 | 0 |
| 1994 | 33 | 0 |
| 1995 | 30 | 0 |
| 1996 | 21 | 0 |
| 1997 | 48 | 0 |
| 1998 | 46 | 0 |
| 1999 | 34 | 0 |
| 2000 | 48 | 0 |
| 2001 | 31 | 8 |
| 2002 | 36 | 41 |
| 2003 | 41 | 57 |
| 2004 | 28 | 54 |
| 2005 | 28 | 59 |
| 2006 | 31 | 49 |
| 2007 | 36 | 69 |
| 2008 | 24 | 52 |
| 2009 | 34 | 62 |
| 2010 | 43 | 73 |
| 2011 | 40 | 68 |
| 2012 | 37 | 62 |
| 2013 | 65 | 80 |
| 2014 | 76 | 77 |
| 2015 | 65 | 82 |
| 2016 | 49 | 73 |
| 2017 | 74 | 91 |
| 2018 | 65 | 78 |
| 2019 | 55 | 74 |
| 2020 | 62 | 89 |
| 2021 | 57 | 73 |
| 2022 | 54 | 102 |
| 2023 | 50 | 100 |
| 2024 | 45 | 85 |
| 2025 | 64 | 79 |
| 2026 | 33 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- NAMPT modulators29 Sep 2026US 12,747,203 B2Cytokinetics, Inc.
- TEAD inhibitors29 Sep 2026US 12,747,207 B2Orion Corporation
- N-heteroarylalkyl-2-(heterocyclyl and heterocyclylmethyl) acetamide derivatives as SSTR4 agonists22 Sep 2026US 12,741,957 B2Takeda Pharmaceutical Company Limited
- Solid supports and phosphoramidite building blocks for oligonucleotide conjugates15 Sep 2026US 12,735,387 B2AM Chemicals LLC
- Ferroptosis inhibitors—diarylamine para-acetamides25 Aug 2026US 12,715,855 B2Sironax Ltd.
- Trpv4 receptor ligands8 Oct 2026US 2026/0308120 A1University of Utah Research Foundation
- Usp30 inhibitors and uses thereof1 Oct 2026US 2026/0297026 A1Vincere Biosciences, Inc.
- Novel compound, and pharmaceutical composition comprising same as active ingredient10 Sep 2026US 2026/0265189 A1Sapiensbio Inc.
- Amide prodrugs and uses thereof10 Sep 2026US 2026/0265227 A1Autobahn Therapeutics, Inc.
- Deubiquitinase inhibitors and methods of use thereof3 Sep 2026US 2026/0258011 A1
Most cited
By later US patents
- Proline derivatives and related compounds230US 4,105,776 AE. R. Squibb & Sons, Inc. · 1978
- Cyclic amino acids180US 4,024,175 AWarner-Lambert Company · 1977
- Azetidine-2-carboxylic acid derivatives180US 4,046,889 AE. R. Squibb & Sons, Inc. · 1977
- Method for preparation of taxol using .beta.-lactam142US 5,175,315 AFlorida State University · 1992
- .beta.-Lactam antibacterial agents, their use in pharmaceutical compositions, and intermediates136US 4,282,236 ABeecham Group Limited · 1981