C08G 18/2081
Containing at least two non-condensed heterocyclic rings
Official title: {containing at least two non-condensed heterocyclic rings}
C08G18/2081 (Containing at least two non-condensed heterocyclic rings) appears on 231 US grants and 292 published applications in this corpus.
Search patents in C08G- Granted patents
- 231
- Published applications
- 292
- Assignees
- 158
- Inventors
- 741
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 4 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 13 |
| 2016 | 10 | 14 |
| 2017 | 7 | 23 |
| 2018 | 9 | 23 |
| 2019 | 14 | 24 |
| 2020 | 20 | 34 |
| 2021 | 23 | 31 |
| 2022 | 13 | 33 |
| 2023 | 23 | 25 |
| 2024 | 17 | 23 |
| 2025 | 19 | 8 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid moisture curable polyurethane with improved adhesion to aluminum11 Aug 2026US 12,703,808 B2Henkel AG & Co. KGaA
- Urethane-based adhesive composition14 Apr 2026US 12,600,891 B2Sika Technology AG
- Viscoelastic polyurethane foam with coating17 Mar 2026US 12,577,360 B2Dow Global Technologies LLC
- Composition and process for producing silylated polymers and use thereof3 Feb 2026US 12,540,211 B2PolyU GmbH
- HCFO-containing isocyanate-reactive compositions, related foam-forming compositions and polyurethane foams3 Feb 2026US 12,540,214 B2Covestro LLC
- Polyisocyanates with improved properties3 Sep 2026US 2026/0258190 A1Covestro Deutschland AG
- Liquid, One Component, Moisture Curable Polyurethane for Bonding Untreated Metals20 Aug 2026US 2026/0242645 A1Henkel AG & Co. KGaA
- Acid-blocked pyrrolidine catalysts for polyurethane foam30 Jul 2026US 2026/0217893 A1Huntsman Petrochemical Corporation
- Amorphous eva-polymers and their use2 Jul 2026US 2026/0184971 A1Arlanxeo Deutschland GmbH
- Adhesive composition and pouch film2 Jul 2026US 2026/0184977 A1Youlchon Chemical Co., Ltd.
Most cited
By later US patents
- Polyurethane casting material108US 4,433,680 AJohnson & Johnson Products, Inc. · 1984
- High speed cure sealant74US 4,780,520 AEssex Specialty Products, Inc. · 1988
- Catalysts for the curing of a water-curable isocyanate-functional prepolymer56US 4,705,840 AMinnesota Mining and Manufacturing Company · 1987
- High speed cure sealant41US 4,758,648 AEssex Specialty Products, Inc. · 1988
- Stabilized, catalyzed water activated polyurethane systems29US 4,574,793 AHexcel Corporation · 1986