C08G 18/345
Having three carboxylic acid groups
Official title: {having three carboxylic acid groups}
C08G18/345 (Having three carboxylic acid groups) appears on 62 US grants and 41 published applications in this corpus.
Search patents in C08G- Granted patents
- 62
- Published applications
- 41
- Assignees
- 44
- Inventors
- 158
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 3 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 5 |
| 2017 | 5 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 3 |
| 2020 | 2 | 3 |
| 2021 | 4 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyurethane gels5 May 2026US 12,616,644 B2Grant Industries, Inc.
- Polyurethane gels13 Jan 2026US 12,521,324 B2Grant Industries, Inc.
- Polyamideimide resin and coating material4 Jan 2022US 11,214,709 B2Showa Denko Materials Co., Ltd.
- Polyamide foams which inhibit the spread of fires for filling cavities in mining28 Sep 2021US 11,130,834 B2Construction Research & Technology GmbH
- Additives for lignocellulosic composites30 Mar 2021US 10,960,570 B2Hexion Inc.
- A coating composition26 Feb 2026US 2026/0055296 A1PPG Industries Ohio, Inc.
- A coating composition23 Oct 2025US 2025/0326949 A1PPG Industries Ohio, Inc.
- Polyurethane gels17 Oct 2024US 2024/0342061 A1Grant Industries, Inc.
- Polyurethane mdi foam forming composition including epoxidized soybean oil, polyurethane foam made from the composition, and method of making polyurethane foam2 May 2024US 2024/0141092 A1Lear Corporation
- Solvent for resin synthesis and method for producing synthetic resin using said solvent21 Dec 2023US 2023/0406986 A1Kj Chemicals Corporation
Most cited
By later US patents
- Carboxylic-acid functional polyurethane polymers and their use in magnetic recording media58US 5,661,207 AMinnesota Mining and Manufacturing Company · 1997
- Adhesive film formed of a siloxane-modified polyamideimide resin composition, adhesive sheet and semiconductor device20US 6,475,629 B1Hitachi Chemical Company, Ltd. · 2002
- Alkenyloxylated aromatic polyamidoimides19US 4,927,899 ARhone-Poulenc Chimie · 1990
- Aromatic polyamidoimides having maleimido end groups18US 4,927,900 ARhone-Poulenc Chimie · 1990
- Linear aromatic poly(amideimide)s having latent maleimide endgroups15US 5,086,154 ARhone-Poulenc Chimie · 1992