C08G 63/197
Containing condensed aromatic rings
Official title: containing condensed aromatic rings
C08G63/197 (Containing condensed aromatic rings) appears on 30 US grants and 47 published applications in this corpus.
Search patents in C08G- Granted patents
- 30
- Published applications
- 47
- Assignees
- 32
- Inventors
- 165
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 3 |
| 2018 | 2 | 2 |
| 2019 | 0 | 3 |
| 2020 | 3 | 4 |
| 2021 | 0 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 2 |
| 2024 | 2 | 5 |
| 2025 | 3 | 9 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyarylate resin and electrophotographic photosensitive member14 Jul 2026US 12,681,396 B2KYOCERA Document Solutions Inc.
- Ester compound and resin composition7 Jul 2026US 12,674,019 B2Ajinomoto Co., Inc.
- Resin produced by polycondensation, and resin composition26 May 2026US 12,637,540 B2Mitsubishi Gas Chemical Company, Inc.
- Retardation film and method for producing the same22 Jul 2025US 12,366,694 B2Osaka Gas Chemicals Co., Ltd.
- Thermoplastic resin and optical member22 Apr 2025US 12,281,198 B2Teijin Limited
- Sulfur-containing heterocyclic compounds and thermoplastic resins20 Aug 2026US 2026/0242539 A1Mitsubishi Gas Chemical Company, Inc.
- Polyester resin, resin composition for cosmetic containers, molded articles, and cosmetic containers23 Jul 2026US 2026/0206948 A1Mitsubishi Gas Chemical Company, Inc.
- Oligomeric binaphthyl compounds and thermoplastic resins25 Jun 2026US 2026/0176226 A1Mitsubishi Gas Chemical Company, Inc.
- Resin and Preparation Method Therefor11 Jun 2026US 2026/0159642 A1LG Chem.Ltd.
- Thermoplastic resin and optical member21 May 2026US 2026/0139096 A1Teijin Limited
Most cited
By later US patents
- Polyester compositions containing the residue of a naphthopyran compound and shaped articles produced therefrom79US 4,892,923 AEastman Kodak Company · 1990
- Polyester of 2,6-naphthalene dicarboxylic acid, 2,6-dihydroxy naphthalene, terephthalic acid, and hydroquinone capable of forming an anisotropic melt54US 4,375,530 ACelanese Corporation · 1983
- Liquid crystal polyester resin composition24US 10,822,452 B2Ueno Fine Chemicals Industry, Ltd. · 2020
- Chiral nematic polyesters11US 5,766,679 ABASF SE · 1998
- Electroluminescent devices having naphthylanthracene-based polymers11US 6,361,887 B1Eastman Kodak Company · 2002