C07C 249/16
Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton: of
Official title: of hydrazones
C07C249/16 (Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton: of) appears on 66 US grants and 66 published applications in this corpus.
Search patents in C07C- Granted patents
- 66
- Published applications
- 66
- Assignees
- 51
- Inventors
- 204
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 3 | 3 |
| 2006 | 4 | 3 |
| 2007 | 2 | 1 |
| 2008 | 0 | 2 |
| 2009 | 4 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 4 | 5 |
| 2015 | 6 | 3 |
| 2016 | 0 | 3 |
| 2017 | 4 | 2 |
| 2018 | 1 | 2 |
| 2019 | 5 | 7 |
| 2020 | 3 | 4 |
| 2021 | 3 | 5 |
| 2022 | 2 | 1 |
| 2023 | 3 | 2 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Materials and methods for iodine capture30 Jun 2026US 12,671,088 B2University of Houston System
- Synthetic methods of making (2H-1, 2, 3-triazol-2-yl) phenyl compounds as orexin receptor modulators10 Mar 2026US 12,570,658 B2Janssen Pharmaceutica NV
- Method for synthesis of 2-methyl-2-hydroxyheptane and 2-methyl 2-alkoxyheptanes12 Mar 2024US 11,926,577 B2P2 Science, Inc.
- P62-ZZ chemical inhibitor29 Aug 2023US 11,739,053 B2ID4Pharma, LLC
- 2,2,2-trifluoroacetic acid 1-(2,4-dimethylphenyl)-2-[(3-methoxyphenyl)methylene] method of making the same21 Feb 2023US 11,584,711 B2Abrexa Pharmaceuticals, Inc.
- Synthetic methods of making (2h-1, 2, 3-triazol-2-yl) phenyl compounds as orexin receptor modulators1 Oct 2026US 2026/0297096 A1Janssen Pharmaceutica NV
- Materials and methods for iodine capture24 Sep 2026US 2026/0290827 A1University of Houston System
- Process for preparing azine using reactors in cascade17 Sep 2026US 2026/0274786 A1
- Vanillin hydrazone compounds16 Jul 2026US 2026/0199266 A1Renovel Innovations, Inc.
- Process of preparation of indoxacarb and its intermediates29 May 2025US 2025/0171409 A1Adama Makhteshim Ltd.
Most cited
By later US patents
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Ligands for metals and improved metal-catalyzed processes based thereon100US 6,395,916 B1Massachusetts Institute of Technology · 2002
- Ligands for metals and improved metal-catalyzed processes based thereon93US 7,223,879 B2Massachusetts Institute of Technology · 2007
- Ligands for metals and improved metal-catalyzed processes based thereon83US 6,946,560 B2Massachusetts Institute of Technology · 2005
- Ligands for metals and improved metal-catalyzed processes based thereon80US 7,026,498 B2Massachusetts Institute of Technology · 2006