C08G 63/181
Acids containing aromatic rings
C08G63/181 (Acids containing aromatic rings) appears on 1,535 US grants and 2,247 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,535
- Published applications
- 2,247
- Assignees
- 712
- Inventors
- 4,461
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 14 | 0 |
| 1978 | 16 | 0 |
| 1979 | 15 | 0 |
| 1980 | 10 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 12 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 21 | 0 |
| 1999 | 26 | 0 |
| 2000 | 24 | 0 |
| 2001 | 26 | 6 |
| 2002 | 32 | 30 |
| 2003 | 31 | 20 |
| 2004 | 20 | 30 |
| 2005 | 15 | 33 |
| 2006 | 25 | 77 |
| 2007 | 22 | 39 |
| 2008 | 21 | 32 |
| 2009 | 17 | 39 |
| 2010 | 32 | 37 |
| 2011 | 33 | 56 |
| 2012 | 21 | 33 |
| 2013 | 24 | 72 |
| 2014 | 31 | 56 |
| 2015 | 52 | 68 |
| 2016 | 43 | 65 |
| 2017 | 47 | 80 |
| 2018 | 49 | 100 |
| 2019 | 74 | 140 |
| 2020 | 65 | 154 |
| 2021 | 113 | 160 |
| 2022 | 72 | 172 |
| 2023 | 86 | 240 |
| 2024 | 109 | 199 |
| 2025 | 123 | 193 |
| 2026 | 67 | 116 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biodegradable polyester resin prepared by adding reaction rate control agent and molecular weight increasing agent derived from biomass and method for preparing same6 Oct 2026US 12,753,275 B2Bioplastics Innovations Limited
- Release coating compositions and articles therefrom6 Oct 2026US 12,753,325 B23M Innovative Properties Company
- Resin mixture, method of producing resin mixture, stretch blow molded product, and method of producing stretch blow molded product22 Sep 2026US 12,742,040 B2Canon Kabushiki Kaisha
- Acrylic polyester resin and an aqueous coating composition containing the same15 Sep 2026US 12,735,524 B2PPG Industries Ohio, Inc.
- Polyester resin15 Sep 2026US 12,735,529 B2TOYOBO MC Corporation
- Manufacturing method of polyethylene furandicarboxylate8 Oct 2026US 2026/0308316 A1Nan Ya Plastics Corporation
- Novel pet degrading enzyme and use thereof8 Oct 2026US 2026/0308546 A1Cj Cheiljedang Corporation
- Polyethylene terephthalate produced from used tires1 Oct 2026US 2026/0297247 A1
- Oriented polyester film and manufacturing method therefor1 Oct 2026US 2026/0297248 A1SK Chemicals Co., Ltd.
- Titanate compounds as catalysts in a method for producing polyester24 Sep 2026US 2026/0286045 A1Equipolymers GmbH
Most cited
By later US patents
- Modified copolyesters and improved multilayer reflective films161US 6,352,761 B13M Innovative Properties Company · 2002
- Thermally stable, rigid dibasic acids137US 4,096,341 AE. I. Du Pont de Nemours and Company · 1978
- Process and catalyst-inhibitor systems for preparing poly(ethylene terephthalate)121US 5,017,680 AEastman Kodak Company · 1991
- High strength, reduced heat distortion temperature thermoplastic composition114US 4,786,692 AGeneral Electric Company · 1988
- Materials for packing nicotine-containing products109US 6,790,496 B1Pfizer Health AB · 2004