C08G 18/022
The polymeric products containing isocyanurate groups
Official title: {the polymeric products containing isocyanurate groups}
C08G18/022 (The polymeric products containing isocyanurate groups) appears on 228 US grants and 238 published applications in this corpus.
Search patents in C08G- Granted patents
- 228
- Published applications
- 238
- Assignees
- 104
- Inventors
- 610
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 5 | 13 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 5 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 5 |
| 2009 | 3 | 5 |
| 2010 | 2 | 3 |
| 2011 | 0 | 8 |
| 2012 | 4 | 5 |
| 2013 | 3 | 10 |
| 2014 | 4 | 6 |
| 2015 | 3 | 6 |
| 2016 | 11 | 11 |
| 2017 | 10 | 19 |
| 2018 | 12 | 26 |
| 2019 | 11 | 21 |
| 2020 | 19 | 16 |
| 2021 | 7 | 13 |
| 2022 | 13 | 15 |
| 2023 | 13 | 17 |
| 2024 | 3 | 11 |
| 2025 | 4 | 6 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Producing isocyanate-terminated, urethane group-containing prepolymers1 Sep 2026US 12,723,123 B2Covestro Deutschland AG
- Storage-stable polyisocyanate composition and preparation method therefor1 Sep 2026US 12,723,124 B2Wanhua Chemical Group Co., Ltd.
- Non-ionic hydrophilized polyisocyanates having a very low monomer content26 May 2026US 12,637,535 B2Covestro Deutschland AG
- Distillation of polyisocyanates19 May 2026US 12,630,662 B2Covestro Deutschland AG
- Modified polyisocyanate19 May 2026US 12,630,667 B2Covestro Deutschland AG
- Polyisocyanates with improved properties3 Sep 2026US 2026/0258190 A1Covestro Deutschland AG
- Polyisocyanate composition13 Aug 2026US 2026/0234113 A1Wanhua Chemical Group Co., Ltd.
- Composition containing isocyanate and isocyanurate groups, and rigid pur/pir foams produced therefrom16 Jul 2026US 2026/0201108 A1Covestro Deutschland AG
- A process for producing one or more polymers selected from the group consisting of polyurethanes, polyurethane ureas, polyisocyanurates, and a mixture of two or more thereof, from a solid material w1 Jan 2026US 2026/0001990 A1BASF SE
- Preparation method for low-color number, low-odor polyisocyanate curing agent20 Nov 2025US 2025/0353959 A1Wanhua Chemical Group Co., Ltd.
Most cited
By later US patents
- Catalysis of organic isocyanate reactions103US 4,040,992 AAir Products and Chemicals, Inc. · 1977
- Isocyanate trimers containing iminooxadiazine dione groups, their preparation and use99US 5,914,383 ABayer Aktiengesellschaft · 1999
- Isocyanato-isocyanurates, and process for the production thereof68US 4,419,513 ABayer Aktiengesellschaft · 1983
- Process for the production of polyisocyanates of isocyanurate structure61US 3,996,223 ABayer Aktiengesellschaft · 1976
- Organic aerogels61US 5,484,818 AImperial Chemical Industries PLC · 1996