C08G 63/195
Bisphenol a
Official title: Bisphenol A
C08G63/195 (Bisphenol a) appears on 66 US grants and 54 published applications in this corpus.
Search patents in C08G- Granted patents
- 66
- Published applications
- 54
- Assignees
- 46
- Inventors
- 244
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 3 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 5 |
| 2019 | 4 | 3 |
| 2020 | 3 | 3 |
| 2021 | 2 | 8 |
| 2022 | 2 | 3 |
| 2023 | 3 | 3 |
| 2024 | 2 | 7 |
| 2025 | 1 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid crystal polymer compositions, articles and methods of making12 May 2026US 12,624,160 B2Syensqo Specialty Polymers USA, LLC
- Triarylmethane compounds10 Mar 2026US 12,570,593 B2Mitsubishi Gas Chemical Company, Inc.
- Toner and method for producing toner2 Sep 2025US 12,405,544 B2Canon Kabushiki Kaisha
- Methods of recycling and reshaping thermosetting polymers and composites thereof19 Mar 2024US 11,932,734 B2Georgia Tech Research Corporation
- Magnetic toner27 Feb 2024US 11,914,326 B2KYOCERA Document Solutions Inc.
- Resin and Preparation Method Therefor11 Jun 2026US 2026/0159642 A1LG Chem.Ltd.
- Toner30 Oct 2025US 2025/0334894 A1
- Phthalimidine- containing cardo bisphenols bearing pendant furyl group and polymers therefrom15 May 2025US 2025/0154318 A1
- Flame-Retardant Composition Comprising 0.040% to 0.095% by Weight of a Flame Retardant13 Mar 2025US 2025/0084246 A1Covestro Deutschland AG
- Process for the production of polyester copolymers16 Jan 2025US 2025/0019493 A1Avantium Knowledge Centre B.V.
Most cited
By later US patents
- Resin fine particles, method of producing resin fine particles, method of producing resin particles, and method of producing toner37US 10,409,180 B2Canon Kabushiki Kaisha · 2019
- Process for preparing aromatic polyesters from diphenols26US 3,972,852 ATeijin Limited · 1976
- Resin composition25US 4,206,100 AUnitika Ltd. · 1980
- Polymer blends with improved hydrolytic stability23US 4,284,549 AHooker Chemicals & Plastics Corporation · 1981
- Process for producing polyarylate having low color23US 5,164,478 AHoechst Celanese Corporation · 1992