C07D 331/04
Four-membered rings
C07D331/04 (Four-membered rings) appears on 80 US grants and 96 published applications in this corpus.
Search patents in C07D- Granted patents
- 80
- Published applications
- 96
- Assignees
- 47
- Inventors
- 237
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 5 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 3 | 16 |
| 2015 | 9 | 2 |
| 2016 | 5 | 15 |
| 2017 | 13 | 14 |
| 2018 | 2 | 3 |
| 2019 | 4 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 7 |
| 2024 | 0 | 6 |
| 2025 | 4 | 8 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Glutamine analogs17 Mar 2026US 12,577,201 B2Jacobio Pharmaceuticals Co., Ltd.
- Cyclic thioether compound, vegetable oil composition containing the same, their preparation and application thereof24 Feb 2026US 12,559,469 B2China Petroleum & Chemical Corporation
- Molecules having pesticidal utility, and intermediates, compositions, and processes, related thereto9 Dec 2025US 12,490,741 B2Corteva Agriscience LLC
- Itaconic acid derivatives and uses thereof intreating an inflammatory disease or a disease associated with an undesirable immune response19 Aug 2025US 12,390,437 B2Sitryx Therapeutics Limited
- Sulfonamido derivatives as cyclin-dependent kinase 2 inhibitors17 Jun 2025US 12,331,026 B2Nikang Therapeutics, Inc.
- Hdac1/2 selective inhibitor and use thereof1 Oct 2026US 2026/0297110 A1Wigen Biomedicine Technology (Shanghai) Co., Ltd.
- Novel carboxamide and sulfonamide pesticidal compounds30 Jul 2026US 2026/0215423 A1Syngenta Crop Protection AG
- Thiolactone-Derived Compounds for Generating Nitric Oxide and Methods of Forming the Same26 Mar 2026US 2026/0083127 A1Sterile State, LLC
- Novel molecules4 Dec 2025US 2025/0368595 A1XENIOPRO GmbH
- Molecules having pesticidal utility, and intermediates, compositions, and processes, related thereto27 Nov 2025US 2025/0359552 A1Corteva Agriscience LLC
Most cited
By later US patents
- Branched amides of L-aspartyl-d-amino acid dipeptides70US 4,411,925 APfizer Inc. · 1983
- Branched amides of L-aspartyl-D-amino acid dipeptides57US 4,399,163 APfizer Inc. · 1983
- 1-Tertiary-alkyl-3-(substituted thienyl)ureas and 1-tertiary-alkyl-3-(substituted thietyl)ureas as antihypertensive agents24US 4,009,847 AE. I. Du Pont de Nemours and Company · 1977
- Sweetening agents19US 4,921,939 AUniversite Claude Bernard Lyon 1 · 1990
- 1,1-Diaminoalkane derived sweeteners14US 4,571,345 ACumberland Packing Corp. · 1986