C07C 263/00
Preparation of derivatives of isocyanic acid
C07C263/00 (Preparation of derivatives of isocyanic acid) appears on 750 US grants and 577 published applications in this corpus.
Search patents in C07C- Granted patents
- 750
- Published applications
- 577
- Assignees
- 210
- Inventors
- 1,662
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 11 | 0 |
| 1978 | 19 | 0 |
| 1979 | 11 | 0 |
| 1980 | 13 | 0 |
| 1981 | 23 | 0 |
| 1982 | 20 | 0 |
| 1983 | 16 | 0 |
| 1984 | 13 | 0 |
| 1985 | 10 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 19 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 3 |
| 2002 | 7 | 8 |
| 2003 | 6 | 14 |
| 2004 | 14 | 15 |
| 2005 | 6 | 21 |
| 2006 | 12 | 21 |
| 2007 | 11 | 19 |
| 2008 | 10 | 20 |
| 2009 | 16 | 23 |
| 2010 | 13 | 35 |
| 2011 | 13 | 37 |
| 2012 | 16 | 29 |
| 2013 | 20 | 28 |
| 2014 | 40 | 13 |
| 2015 | 42 | 21 |
| 2016 | 29 | 26 |
| 2017 | 24 | 26 |
| 2018 | 20 | 27 |
| 2019 | 24 | 11 |
| 2020 | 22 | 34 |
| 2021 | 15 | 34 |
| 2022 | 20 | 23 |
| 2023 | 16 | 24 |
| 2024 | 14 | 33 |
| 2025 | 14 | 15 |
| 2026 | 16 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 263/10Preparation of derivatives of isocyanic acid: by reaction of amines with carbonyl318
- C07C 263/18Separation251
- C07C 263/04From or via carbamates or carbamoyl halides157
- C07C 263/16Preparation of derivatives of isocyanic acid: by reactions not involving the formation35
- C07C 263/06From or via ureas23
- C07C 263/12From or via nitrogen analogues of carboxylic acids21
- C07C 263/14Preparation of derivatives of isocyanic acid: by catalytic reaction of nitro compounds11
- C07C 263/08From or via heterocyclic compounds10
All 9 subgroupsShow fewer
Recent patents
- Method for preparing isocyanate compound6 Oct 2026US 12,753,150 B2Hanwha Solutions Corporation
- Method for preparing isocyanate compound6 Oct 2026US 12,753,151 B2Hanwha Solutions Corporation
- (meth)acrylic acid ester compound having isocyanate group and method for producing same11 Aug 2026US 12,703,677 B2Resonac Corporation
- Process for producing 1, 5-pentamethylene diisocyanate from cadaverine salt11 Aug 2026US 12,703,678 B2Mojia Biotech Ltd.
- Xylylene diisocynate composition, preparation method therefor and use thereof14 Jul 2026US 12,679,923 B2Wanhua Chemical Group Co., Ltd.
- Method for preparing isocyanate by combining supercritical phosgenation method with piping method1 Oct 2026US 2026/0297019 A1Mojia (Shanghai) Biotech Co., Ltd
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
- Method and device for producing isocyanates20 Aug 2026US 2026/0242333 A1Covestro Deutschland AG
- Producing special isocyanates via co-phosgenation20 Aug 2026US 2026/0242534 A1Covestro Deutschland AG
- A process for preparing at least one polyisocyanate from a solid material w6 Aug 2026US 2026/0226252 A1BASF SE
Most cited
By later US patents
- Compounds and compositions for intracellular delivery of therapeutic agents143US 9,868,691 B2ModernaTX, Inc. · 2018
- Process for the partial carbodiimidization of organic isocyanates76US 4,088,665 ABayer Aktiengesellschaft · 1978
- Circulation process for the production of aliphatic and cycloaliphatic diisocyanates76US 5,087,739 AHuels Aktiengesellschaft · 1992
- Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue70US 4,596,678 ABASF SE · 1986
- Low-temperature storage stable liquid diphenylmethane diisocyanates65US 4,118,411 AMobay Chemical Corporation · 1978