C07C 263/10
Preparation of derivatives of isocyanic acid: by reaction of amines with carbonyl
Official title: by reaction of amines with carbonyl halides, e.g. with phosgene
C07C263/10 (Preparation of derivatives of isocyanic acid: by reaction of amines with carbonyl) appears on 318 US grants and 357 published applications in this corpus.
Search patents in C07C- Granted patents
- 318
- Published applications
- 357
- Assignees
- 88
- Inventors
- 845
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 9 |
| 2004 | 9 | 10 |
| 2005 | 5 | 11 |
| 2006 | 9 | 16 |
| 2007 | 8 | 14 |
| 2008 | 3 | 13 |
| 2009 | 11 | 17 |
| 2010 | 9 | 21 |
| 2011 | 8 | 22 |
| 2012 | 14 | 18 |
| 2013 | 15 | 14 |
| 2014 | 20 | 6 |
| 2015 | 16 | 10 |
| 2016 | 18 | 14 |
| 2017 | 14 | 17 |
| 2018 | 8 | 18 |
| 2019 | 16 | 9 |
| 2020 | 16 | 20 |
| 2021 | 6 | 22 |
| 2022 | 12 | 16 |
| 2023 | 9 | 13 |
| 2024 | 11 | 21 |
| 2025 | 9 | 11 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- 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
- Method for preparing diisocyanate11 Jun 2026US 2026/0159475 A1Hanwha Solutions Corporation
Most cited
By later US patents
- Process for the preparation of (cyclo)aliphatic diisocyanates60US 4,847,408 ABayer Aktiengesellschaft · 1989
- Process for the phosgenation of amines in the gas phase using microstructure mixers46US 6,225,497 B1Bayer Aktiengesellschaft · 2001
- Process for the preparation of aromatic diisocyanates42US 5,449,818 ABayer Aktiengesellschaft · 1995
- Separation of a substance mixture consisting of hydrogen chloride and phosgene38US 7,584,629 B2BASF SE · 2009
- Method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products and with a reduced iodine color index34US 6,576,788 B1BASF SE · 2003