C08G 18/4238
Derived from dicarboxylic acids and dialcohols
Official title: {derived from dicarboxylic acids and dialcohols}
C08G18/4238 (Derived from dicarboxylic acids and dialcohols) appears on 767 US grants and 1,099 published applications in this corpus.
Search patents in C08G- Granted patents
- 767
- Published applications
- 1,099
- Assignees
- 421
- Inventors
- 2,857
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 0 | 0 |
| 1994 | 17 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 10 | 15 |
| 2003 | 15 | 18 |
| 2004 | 15 | 18 |
| 2005 | 5 | 13 |
| 2006 | 10 | 22 |
| 2007 | 1 | 20 |
| 2008 | 3 | 22 |
| 2009 | 7 | 37 |
| 2010 | 6 | 41 |
| 2011 | 12 | 41 |
| 2012 | 25 | 35 |
| 2013 | 23 | 36 |
| 2014 | 23 | 43 |
| 2015 | 38 | 53 |
| 2016 | 35 | 41 |
| 2017 | 31 | 52 |
| 2018 | 25 | 49 |
| 2019 | 30 | 51 |
| 2020 | 39 | 89 |
| 2021 | 58 | 87 |
| 2022 | 37 | 100 |
| 2023 | 55 | 67 |
| 2024 | 57 | 66 |
| 2025 | 40 | 45 |
| 2026 | 18 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermoplastic polyurethane based polymeric electrolyte composition6 Oct 2026US 12,753,268 B2Huntsman International LLC
- Aqueous self-crosslinkable polyurethane dispersions22 Sep 2026US 12,742,035 B2BASF SE
- Water-dispersible polyisocyanate, aqueous polyurethane resin composition, and article25 Aug 2026US 12,715,956 B2Mitsui Chemicals, Inc.
- Flexible food packaging laminates18 Aug 2026US 12,709,702 B2Sun Chemical Corporation
- Degradable bio-based polymers11 Aug 2026US 12,703,768 B2Algenesis Corporation
- 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.
- Water-borne multi-pack type coating composition and method for producing coated article13 Aug 2026US 2026/0234435 A1Nippon Paint Automotive Coatings Co., Ltd.
- Method for forming multilayer coating film and clear coating used for producing multilayer coating film13 Aug 2026US 2026/0234437 A1BASF Coatings GmbH
- Polyurethane prepolymer composition and preparation method therefor and use thereof6 Aug 2026US 2026/0226221 A1Mojia (Shanghai) Biotech Co., Ltd
Most cited
By later US patents
- Membranes of polyurethane based materials including polyester polyols423US 6,013,340 ANIKE, Inc. · 2000
- Membranes of polyurethane based materials including polyester polyols364US 6,321,465 B1NIKE, Inc. · 2001
- Barrier members including a barrier layer employing polyester polyols295US 6,203,868 B1NIKE, Inc. · 2001
- Shape memory film239US 5,139,832 AMitsubishi Jukogyo Kabushiki Kaisha · 1992
- Impact resistant polyurethane and method of manufacture thereof151US 5,962,617 ASimula, Inc. · 1999