C07C 263/16
Preparation of derivatives of isocyanic acid: by reactions not involving the formation
Official title: by reactions not involving the formation of isocyanate groups
C07C263/16 (Preparation of derivatives of isocyanic acid: by reactions not involving the formation) appears on 35 US grants and 22 published applications in this corpus.
Search patents in C07C- Granted patents
- 35
- Published applications
- 22
- Assignees
- 28
- Inventors
- 91
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 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 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- (meth)acrylic acid ester compound having isocyanate group and method for producing same11 Aug 2026US 12,703,677 B2Resonac Corporation
- Method for producing carbodiimides20 Sep 2022US 11,447,447 B2LANXESS Deutschland GmbH
- Continuous dilution of polyisocyanates17 Aug 2021US 11,091,431 B2Covestro Deutschland AG
- Process for preparing liquid, storage-stable organic isocyanates having carbodiimide and/or uretonimine groups and having low colour number28 Apr 2020US 10,633,330 B2Covestro Deutschland AG
- Polyisocyanate composition and isocyanate polymer composition28 May 2019US 10,301,417 B2Asahi Kasei Kabushiki Kaisha
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
- Preparation method for low-color number, low-odor polyisocyanate curing agent20 Nov 2025US 2025/0353959 A1Wanhua Chemical Group Co., Ltd.
- Rheology-modifying difunctional compound19 Oct 2023US 2023/0331665 A1Coatex
- (meth)acrylic acid ester compound having isocyanate group and method for producing same23 Feb 2023US 2023/0056109 A1Showa Denko K. K.
- Method for producing carbodiimides22 Oct 2020US 2020/0331849 A1LANXESS Deutschland GmbH
Most cited
By later US patents
- Process for the partial carbodiimidization of organic isocyanates76US 4,088,665 ABayer Aktiengesellschaft · 1978
- Preparation of aqueous dispersions of blocked aromatic polyisocyanates12US 3,997,592 AE. I. Du Pont de Nemours and Company · 1976
- Process for the continuous production of polyisocyanate8US 4,290,969 AAsahi Kasei Kogyo Kabushiki Kaisha · 1981
- Alpha-methylstyrene dimer derivatives8US 6,388,153 B2E. I. duPont Nemours and Company · 2002
- Process for the production of isocyanates6US 4,745,212 ABayer Aktiengesellschaft · 1988