C08G 18/721
Two or more polyisocyanates not provided for in one single group c08g18/73
Official title: {Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80}
C08G18/721 (Two or more polyisocyanates not provided for in one single group c08g18/73) appears on 812 US grants and 1,056 published applications in this corpus.
Search patents in C08G- Granted patents
- 812
- Published applications
- 1,056
- Assignees
- 398
- Inventors
- 2,620
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 16 | 0 |
| 1997 | 12 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 16 | 0 |
| 2001 | 3 | 0 |
| 2002 | 9 | 7 |
| 2003 | 9 | 5 |
| 2004 | 5 | 13 |
| 2005 | 2 | 12 |
| 2006 | 5 | 15 |
| 2007 | 0 | 45 |
| 2008 | 5 | 37 |
| 2009 | 9 | 42 |
| 2010 | 8 | 31 |
| 2011 | 14 | 35 |
| 2012 | 18 | 33 |
| 2013 | 29 | 48 |
| 2014 | 35 | 47 |
| 2015 | 36 | 50 |
| 2016 | 36 | 53 |
| 2017 | 33 | 48 |
| 2018 | 42 | 63 |
| 2019 | 44 | 57 |
| 2020 | 51 | 72 |
| 2021 | 44 | 67 |
| 2022 | 34 | 71 |
| 2023 | 40 | 55 |
| 2024 | 50 | 61 |
| 2025 | 40 | 51 |
| 2026 | 23 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/722Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates285
- C08G 18/725Combination of polyisocyanates of c08g18/78 with other polyisocyanates222
- C08G 18/724Combination of aromatic polyisocyanates with aliphatic polyisocyanates221
- C08G 18/727Comprising distillation residues or non-distilled raw phosgenation products38
Recent patents
- Cover coating with good adhesion on polyurethane and polyurea membranes6 Oct 2026US 12,753,267 B2Sika Technology AG
- Polyurethanes from depolymerized lignin containing lignin monomers8 Sep 2026US 12,729,265 B2Vito NV
- Dispersions that are substantially free of volatile organic compounds and that have a high solids content8 Sep 2026US 12,729,266 B2Stahl International B.V.
- Aqueous polyurethane-urea dispersion4 Aug 2026US 12,698,413 B2Covestro Deutschland AG
- Thermoplastic polyurethanes derived from lignin monomers9 Jun 2026US 12,649,816 B2Vito NV
- Method for the Production of a Thermoplastic Polyurethane Powder by Means of Precipitation Polymerisation1 Oct 2026US 2026/0297239 A1Covestro Deutschland AG
- Thermally Conductive Polyurethane Adhesive Composition for Batteries in Electric Vehicles17 Sep 2026US 2026/0275172 A1Henkel AG & Co. KGaA
- Process for wet on wet application of a multilayer coating3 Sep 2026US 2026/0258278 A1Axalta Coating Systems IP Co., LLC
- Modified bio-based waterborne polyurethane, method for preparing same, and use thereof27 Aug 2026US 2026/0250452 A1Mojia (Shanghai) Biotech Co., Ltd
- Polyurethane-polyurea aqueous dispersion, and preparation method therefor and use thereof27 Aug 2026US 2026/0250455 A1Wanhua Chemical Group Co., Ltd.
Most cited
By later US patents
- Moisture curable polyurethane composition176US 5,288,797 ATremco Incorporated · 1994
- Polyurethane elastomer article with “shape memory” and medical devices therefrom153US 6,664,335 B2Cardiac Pacemakers, Inc. · 2003
- Process for the preparation of polyurethanes which are dispersible in water78US 4,237,264 ABayer Aktiengesellschaft · 1980
- Stable, aqueous dispersions of polyurethane-ureas73US 4,501,852 AMobay Chemical Corporation · 1985
- Aqueous polyurethane dispersion adhesive compositions with improved heat resistance71US 5,608,000 AH. B. Fuller Licensing & Financing, Inc. · 1997