C07C 277/00
Preparation of guanidine or its derivatives, i.e. compounds containing the group [image
Official title: Preparation of guanidine or its derivatives, i.e. compounds containing the group [IMAGE cpc-sch-C07C-0970.gif], the singly-bound nitrogen atoms not being part of nitro or nitroso groups
C07C277/00 (Preparation of guanidine or its derivatives, i.e. compounds containing the group [image) appears on 204 US grants and 196 published applications in this corpus.
Search patents in C07C- Granted patents
- 204
- Published applications
- 196
- Assignees
- 171
- Inventors
- 632
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 2 |
| 2003 | 2 | 8 |
| 2004 | 8 | 3 |
| 2005 | 5 | 7 |
| 2006 | 3 | 2 |
| 2007 | 2 | 6 |
| 2008 | 4 | 7 |
| 2009 | 2 | 3 |
| 2010 | 6 | 2 |
| 2011 | 4 | 9 |
| 2012 | 3 | 9 |
| 2013 | 2 | 7 |
| 2014 | 11 | 12 |
| 2015 | 5 | 10 |
| 2016 | 8 | 12 |
| 2017 | 9 | 10 |
| 2018 | 9 | 13 |
| 2019 | 17 | 6 |
| 2020 | 2 | 10 |
| 2021 | 9 | 11 |
| 2022 | 6 | 15 |
| 2023 | 6 | 12 |
| 2024 | 6 | 4 |
| 2025 | 6 | 9 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 277/08Preparation of guanidine or its derivatives, i.e. compounds containing the group [image157
- C07C 277/02Preparation of guanidine or its derivatives, i.e. compounds containing the group [image18
- C07C 277/06Purification or separation of guanidine11
- C07C 277/04Preparation of guanidine or its derivatives, i.e. compounds containing the group [image6
Recent patents
- Process for the preparation of (9S)-2-bromo-9-(2,3,4-trifluorophenyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[1,5-A]azepine6 Oct 2026US 12,753,175 B2Hoffmann-La Roche Inc.
- Alpha-carbonyl alkenyl ester preparation method therefor and application thereof15 Sep 2026US 12,735,449 B2Jiangxi Normal University
- Methods of production of arginine-silicate complexes16 Jun 2026US 12,653,219 B2Nutrition21, LLC
- Cocrystal comprising camostat and niclosamide, pharmaceutical composition comprising same and preparation method therefor20 Jan 2026US 12,527,762 B2Imdpharm Inc.
- Substituted hydroxystilbene compounds and derivatives synthesis and uses thereof4 Nov 2025US 12,459,883 B2Kynan Duke IP, LLC
- Process for preparing an n-guanylamino acid6 Aug 2026US 2026/0226001 A1Evonik Operations GmbH
- Improved enzyme-assisted synthesis of chlorhexidine base30 Jul 2026US 2026/0218252 A1Xttrium Laboratories, Inc.
- Substituted Hydroxystilbene Compounds and Derivatives, Synthesis and Uses Thereof23 Jul 2026US 2026/0209152 A1Kynan Duke IP, LLC
- Process for the preparation of biguanidines and triazines23 Jul 2026US 2026/0209186 A1Adama Agan Ltd.
- Crystal form of l-arginine (s)-2-(1-acetoxy-n-pentyl)benzoate, and preparation method therefor and use thereof9 Jul 2026US 2026/0193163 A1Jiangsu Kanion Pharmaceutical Co., Ltd.
Most cited
By later US patents
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds78US 6,759,554 B2Massachusetts Institute of Technology · 2004
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds72US 6,867,298 B2Massachusetts Institute of Technology · 2005
- Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds62US 7,115,784 B2Massachusetts Institute of Technology · 2006
- Isolating aminoarginine and use to block nitric oxide formation in body58US 5,059,712 ACornell Research Foundation, Inc. · 1991
- Process for the preparation of N,N'-disubstituted guanidines45US 4,898,978 AAkzo N. V. · 1990