C08G 18/02
Polymeric products of isocyanates or isothiocyanates: of isocyanates or isothiocyanates only
Official title: of isocyanates or isothiocyanates only
C08G18/02 (Polymeric products of isocyanates or isothiocyanates: of isocyanates or isothiocyanates only) appears on 488 US grants and 480 published applications in this corpus.
Search patents in C08G- Granted patents
- 488
- Published applications
- 480
- Assignees
- 184
- Inventors
- 1,146
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 6 | 0 |
| 1982 | 10 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 11 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 3 |
| 2002 | 10 | 7 |
| 2003 | 8 | 18 |
| 2004 | 5 | 15 |
| 2005 | 5 | 15 |
| 2006 | 11 | 13 |
| 2007 | 5 | 12 |
| 2008 | 3 | 11 |
| 2009 | 6 | 8 |
| 2010 | 7 | 8 |
| 2011 | 7 | 15 |
| 2012 | 6 | 9 |
| 2013 | 6 | 16 |
| 2014 | 10 | 11 |
| 2015 | 8 | 22 |
| 2016 | 19 | 20 |
| 2017 | 19 | 33 |
| 2018 | 20 | 38 |
| 2019 | 23 | 42 |
| 2020 | 29 | 29 |
| 2021 | 19 | 30 |
| 2022 | 20 | 25 |
| 2023 | 17 | 42 |
| 2024 | 13 | 19 |
| 2025 | 18 | 10 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Aziridinyl functional compound26 May 2026US 12,637,423 B2Covestro (Netherlands) B.V.
- 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
- 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
- Adhesive composition, the preparation method and use thereof28 May 2026US 2026/0146189 A1Covestro Deutschland AG
- Polyalkylene glycol terminated poly-carbodiimides, and process for forming same5 Mar 2026US 2026/0062508 A1
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