C07D 303/40
By ester radicals
Official title: by ester radicals
C07D303/40 (By ester radicals) appears on 283 US grants and 136 published applications in this corpus.
Search patents in C07D- Granted patents
- 283
- Published applications
- 136
- Assignees
- 174
- Inventors
- 661
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 7 | 0 |
| 1978 | 11 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 0 |
| 2002 | 10 | 4 |
| 2003 | 6 | 3 |
| 2004 | 4 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 8 |
| 2008 | 1 | 1 |
| 2009 | 4 | 8 |
| 2010 | 3 | 5 |
| 2011 | 2 | 6 |
| 2012 | 2 | 4 |
| 2013 | 6 | 8 |
| 2014 | 2 | 9 |
| 2015 | 7 | 7 |
| 2016 | 10 | 10 |
| 2017 | 10 | 8 |
| 2018 | 7 | 7 |
| 2019 | 9 | 7 |
| 2020 | 8 | 8 |
| 2021 | 1 | 6 |
| 2022 | 5 | 6 |
| 2023 | 7 | 4 |
| 2024 | 2 | 6 |
| 2025 | 3 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Refrigerator oil composition and mixed composition for refrigerator10 Mar 2026US 12,570,917 B2Idemitsu Kosan Co., Ltd.
- Fatty acid derivatives and their use25 Nov 2025US 12,479,812 B2The United States of America, as represented by the Secretary, Department of Health and Human Services
- Bio-based epoxy chain extender and preparation method thereof18 Mar 2025US 12,252,476 B2Beijing Technology and Business University
- Tiglien-3-one derivatives28 Jan 2025US 12,208,078 B2Qbiotics Pty Ltd
- Inhibitors of the n-terminal domain of the androgen receptor10 Dec 2024US 12,162,818 B2The Regents of the University of California
- Epoxy compound product18 Jun 2026US 2026/0167764 A1Daicel Corporation
- Difluoroaldehyde, epoxy, and derivative thereof11 Dec 2025US 2025/0376430 A1SynCrest Inc.
- Novel plasticizers, process for the preparation thereof, and use thereof21 Aug 2025US 2025/0263523 A1Centre National De La Recherche Scientifique
- Metap2 inhibitors and uses thereof24 Apr 2025US 2025/0129033 A1Yissum Research Development Company of the Hebrew University of Jerusalem
- Bio-based plasticizers6 Feb 2025US 2025/0043107 A1Cargill, Incorporated
Most cited
By later US patents
- Phenethanolamine derivatives172US 4,992,474 AGlaxo Group Limited · 1991
- [4-(1,2-epoxycyclohexanyl)but-3-en-1-ynyl]aromatic and heteroaromatic acids and derivatives having retinoid-like biological activity97US 5,426,118 AAllergan, Inc. · 1995
- Process for the preparation of vegetable oil-based polyols and electroninsulating casting compounds created from vegetable oil-based polyols91US 6,107,433 APittsburg State University · 2000
- 1,2-epoxycyclohexanyl and bicyclic aromatic substituted ethyne compounds having retinoid-like biological activity78US 5,451,605 AAllergan, Inc. · 1995
- Method of making natural oil-based polyols and polyurethanes therefrom78US 6,433,121 B1Pittsburg State University · 2002