C07C 233/81
Having the nitrogen atom of at least one of the carboxamide groups
Official title: having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
C07C233/81 (Having the nitrogen atom of at least one of the carboxamide groups) appears on 603 US grants and 534 published applications in this corpus.
Search patents in C07C- Granted patents
- 603
- Published applications
- 534
- Assignees
- 329
- Inventors
- 1,739
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 15 | 0 |
| 1996 | 10 | 0 |
| 1997 | 21 | 0 |
| 1998 | 34 | 0 |
| 1999 | 36 | 0 |
| 2000 | 29 | 0 |
| 2001 | 28 | 7 |
| 2002 | 38 | 32 |
| 2003 | 32 | 37 |
| 2004 | 19 | 30 |
| 2005 | 19 | 31 |
| 2006 | 15 | 19 |
| 2007 | 13 | 24 |
| 2008 | 14 | 14 |
| 2009 | 15 | 32 |
| 2010 | 22 | 25 |
| 2011 | 20 | 24 |
| 2012 | 18 | 22 |
| 2013 | 18 | 14 |
| 2014 | 24 | 27 |
| 2015 | 18 | 22 |
| 2016 | 14 | 22 |
| 2017 | 16 | 20 |
| 2018 | 11 | 14 |
| 2019 | 15 | 12 |
| 2020 | 9 | 25 |
| 2021 | 7 | 12 |
| 2022 | 10 | 18 |
| 2023 | 7 | 17 |
| 2024 | 6 | 16 |
| 2025 | 8 | 10 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Amide compounds and their use as flavor modifiers22 Sep 2026US 12,740,581 B2Firmenich SA
- Modulators of programmed death-ligand-122 Sep 2026US 12,741,965 B2Southern Research Institute
- Crystalline form of CXCR2 antagonist and application thereof17 Mar 2026US 12,577,235 B2Shenzhen Optimum Biological Technology Co., Ltd
- 4-membered ring carboxamides used as nematicides6 Jan 2026US RE50,724 E1Syngenta Crop Protection AG
- Compounds having a fungicidal activity, their agronomic compositions and use thereof for the control of phytopathogenic fungi28 Oct 2025US 12,454,507 B2
- Masp-2 inhibitors and methods of use9 Jul 2026US 2026/0193179 A9Omeros Corporation
- Resist composition, method for forming resist pattern, compound, and polymer compound26 Mar 2026US 2026/0086458 A1Tokyo Ohka Kogyo.Co., Ltd.
- Bacterial compositions and methods of use19 Mar 2026US 2026/0077001 A1University of Florida Research Foundation, Inc.
- Resist composition, resist pattern forming method, compound and acid diffusion control agent19 Mar 2026US 2026/0079395 A1Tokyo Ohka Kogyo.Co., Ltd.
- Compositions and methods of use12 Mar 2026US 2026/0069560 A1University of Florida Research Foundation, Inc.
Most cited
By later US patents
- Diketopiperazine-based delivery systems228US 5,976,569 AEmisphere Technologies, Inc. · 1999
- Oral drug delivery compositions and methods186US 5,792,451 AEmisphere Technologies, Inc. · 1998
- Compounds and compositions for delivering active agents184US 5,643,957 AEmisphere Technologies, Inc. · 1997
- Carbon-substituted diketopiperazine delivery systems183US 6,331,318 B1Emisphere Technologies, Inc. · 2001
- Method for preparation of taxol using an oxazinone181US 5,015,744 AFlorida State University · 1991