C08G 18/343
Polycarboxylic acids having at least three carboxylic acid groups
Official title: {Polycarboxylic acids having at least three carboxylic acid groups}
C08G18/343 (Polycarboxylic acids having at least three carboxylic acid groups) appears on 140 US grants and 106 published applications in this corpus.
Search patents in C08G- Granted patents
- 140
- Published applications
- 106
- Assignees
- 93
- Inventors
- 349
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 3 |
| 2010 | 4 | 1 |
| 2011 | 1 | 5 |
| 2012 | 2 | 6 |
| 2013 | 2 | 5 |
| 2014 | 6 | 4 |
| 2015 | 3 | 3 |
| 2016 | 3 | 7 |
| 2017 | 7 | 6 |
| 2018 | 5 | 10 |
| 2019 | 3 | 4 |
| 2020 | 4 | 6 |
| 2021 | 6 | 4 |
| 2022 | 3 | 7 |
| 2023 | 3 | 4 |
| 2024 | 2 | 7 |
| 2025 | 3 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polyurethane gels5 May 2026US 12,616,644 B2Grant Industries, Inc.
- Polyurethane gels13 Jan 2026US 12,521,324 B2Grant Industries, Inc.
- Coating compositions and methods, and articles coated with same20 May 2025US 12,305,059 B2Red Spot Paint & Varnish Co., Inc.
- Water-based compositions13 May 2025US 12,297,315 B2Arkema France
- Polyurethane insulation foam composition comprising halogenated olefins and a tertiary amine compound21 Jan 2025US 12,202,926 B2Huntsman International LLC
- Protective film, optical article including the same, and method for preparing the protective film27 Aug 2026US 2026/0250521 A1Electronics and Telecommunications Research Institute
- A coating composition26 Feb 2026US 2026/0055296 A1PPG Industries Ohio, Inc.
- A coating composition23 Oct 2025US 2025/0326949 A1PPG Industries Ohio, Inc.
- Polyaspartate-based two-component coating compositions for producing coatings having good self-healing properties coupled with low tackiness17 Jul 2025US 2025/0230337 A1Covestro Deutschland AG
- Urea coating composition24 Apr 2025US 2025/0129262 A1Kcc 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
- Polyamide imides produced from either lactams or polyamides with isocyanates or anhydrides in which products are precipitated with a non-solvent25US 4,628,079 ABayer Aktiengesellschaft · 1986
- 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