C08G 63/183
Terephthalic acids
C08G63/183 (Terephthalic acids) appears on 1,062 US grants and 1,793 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,062
- Published applications
- 1,793
- Assignees
- 584
- Inventors
- 3,457
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 17 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 4 |
| 2002 | 17 | 23 |
| 2003 | 19 | 17 |
| 2004 | 18 | 28 |
| 2005 | 13 | 25 |
| 2006 | 20 | 64 |
| 2007 | 16 | 26 |
| 2008 | 17 | 28 |
| 2009 | 14 | 28 |
| 2010 | 29 | 28 |
| 2011 | 26 | 45 |
| 2012 | 13 | 24 |
| 2013 | 21 | 48 |
| 2014 | 22 | 40 |
| 2015 | 43 | 41 |
| 2016 | 29 | 40 |
| 2017 | 25 | 49 |
| 2018 | 27 | 69 |
| 2019 | 56 | 107 |
| 2020 | 46 | 123 |
| 2021 | 92 | 136 |
| 2022 | 59 | 150 |
| 2023 | 68 | 208 |
| 2024 | 95 | 171 |
| 2025 | 107 | 174 |
| 2026 | 61 | 97 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- 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
- Process For Preparing Biodegradable Polyester And Biodegradable Polyester Prepared Thereby17 Sep 2026US 2026/0275031 A1Hanwha Totalenergies Petrochemical Co., Ltd.
Most cited
By later US patents
- Process and catalyst-inhibitor systems for preparing poly(ethylene terephthalate)121US 5,017,680 AEastman Kodak Company · 1991
- Poly(1,3-propylene terephthalate)82US 5,340,909 AHoechst Celanese Corporation · 1994
- Polyester process using a pipe reactor76US 6,861,494 B2Eastman Chemical Company · 2005
- Method for separating and recovering dimethyl terephthalate and ethylene glycol from polyester waste74US 6,706,843 B1Teijin Limited · 2004
- Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom74US 7,781,562 B2Eastman Chemical Company · 2010