C07C 251/00
Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
Official title: Compounds containing nitrogen atoms doubly-bound to a carbon skeleton (diazo compounds C07C245/12)
C07C251/00 (Compounds containing nitrogen atoms doubly-bound to a carbon skeleton) appears on 2,282 US grants and 1,586 published applications in this corpus.
Search patents in C07C- Granted patents
- 2,282
- Published applications
- 1,586
- Assignees
- 1,017
- Inventors
- 5,658
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 54 | 0 |
| 1977 | 22 | 0 |
| 1978 | 29 | 0 |
| 1979 | 20 | 0 |
| 1980 | 15 | 0 |
| 1981 | 28 | 0 |
| 1982 | 6 | 0 |
| 1983 | 14 | 0 |
| 1984 | 24 | 0 |
| 1985 | 9 | 0 |
| 1986 | 13 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 19 | 0 |
| 1990 | 25 | 0 |
| 1991 | 43 | 0 |
| 1992 | 37 | 0 |
| 1993 | 51 | 0 |
| 1994 | 54 | 0 |
| 1995 | 53 | 0 |
| 1996 | 87 | 0 |
| 1997 | 90 | 0 |
| 1998 | 66 | 0 |
| 1999 | 77 | 0 |
| 2000 | 80 | 0 |
| 2001 | 87 | 24 |
| 2002 | 92 | 66 |
| 2003 | 78 | 63 |
| 2004 | 47 | 84 |
| 2005 | 44 | 55 |
| 2006 | 43 | 54 |
| 2007 | 35 | 51 |
| 2008 | 41 | 71 |
| 2009 | 33 | 73 |
| 2010 | 45 | 73 |
| 2011 | 54 | 86 |
| 2012 | 46 | 68 |
| 2013 | 55 | 83 |
| 2014 | 78 | 85 |
| 2015 | 91 | 82 |
| 2016 | 76 | 67 |
| 2017 | 65 | 69 |
| 2018 | 44 | 65 |
| 2019 | 54 | 49 |
| 2020 | 54 | 62 |
| 2021 | 32 | 42 |
| 2022 | 47 | 64 |
| 2023 | 31 | 61 |
| 2024 | 24 | 34 |
| 2025 | 33 | 29 |
| 2026 | 22 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for preparing (2S,3R,4R)-4,5-dihydroxyisoleucine derivative and intermediates thereof15 Sep 2026US 12,735,384 B2Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Intermediates1 Sep 2026US 12,723,019 B2Syngenta Crop Protection AG
- Plant disease control composition and plant disease control method25 Aug 2026US 12,714,103 B2Sumitomo Chemical Company, Limited
- Compositions and methods of making expanded hematopoietic stem cells using derivatives of fluorene4 Aug 2026US 12,698,255 B2ImmuneBridge Inc.
- Materials and methods for iodine capture30 Jun 2026US 12,671,088 B2University of Houston System
- Organic compound (oxime) to combat chemical warfare agents1 Oct 2026US 2026/0297032 A1Prepaire Labs Limited
- Synthetic methods of making (2h-1, 2, 3-triazol-2-yl) phenyl compounds as orexin receptor modulators1 Oct 2026US 2026/0297096 A1Janssen Pharmaceutica NV
- Aldoxime antibiotics and related methods24 Sep 2026US 2026/0283985 A1
- Materials and methods for iodine capture24 Sep 2026US 2026/0290827 A1University of Houston System
- Halogenated benzylidine derivatives and their use in the treatment of cancers10 Sep 2026US 2026/0265180 A1Renovel Innovations, Inc.
Most cited
By later US patents
- Oxime ester photoiniators having a combined structure283US 7,189,489 B2Ciba Specialty Chemicals Corporation · 2007
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Bicyclic naphthalenic derivatives, a process for preparing the same and human or veterinary medicines and cosmetic compositions containing said derivatives142US 4,826,969 ACentre International de Recherches Dermatologiques (C.I.R.D.) · 1989
- Process for producing 4-trifluoromethylnicotinic acid129US 5,708,175 AIshihara Sangyo Kaisha, Ltd. · 1998