C08G 65/4087
Characterised by the catalyst used
Official title: {characterised by the catalyst used}
C08G65/4087 (Characterised by the catalyst used) appears on 38 US grants and 34 published applications in this corpus.
Search patents in C08G- Granted patents
- 38
- Published applications
- 34
- Assignees
- 32
- Inventors
- 123
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 3 |
| 2015 | 3 | 2 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 3 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 3 | 1 |
| 2022 | 0 | 4 |
| 2023 | 0 | 1 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing aromatic polyether, and potassium carbonate used in same3 Jun 2025US 12,319,785 B2Idemitsu Kosan Co., Ltd.
- Squaric acid-based polymers, their manufacturing processes and their uses4 Feb 2025US 12,215,190 B2Hydro-Quebec
- Functionalized poly(aryl ether sulfones) copolymers3 Dec 2024US 12,157,797 B2Solvay Specialty Polymers USA, LLC
- Poly(arylene ether ketone) resin, method for producing the same, and molded article8 Oct 2024US 12,110,364 B2DIC Corporation
- Method for preparing polyetherketoneketone and polyetherketoneketone prepared thereby5 Mar 2024US 11,919,999 B2Hanwha Chemical Corporation
- Oligomer, method for preparing oligomer, and method for preparing cured product of oligomer23 Jul 2026US 2026/0209435 A1CPC Corporation, Taiwan
- Method for synthesizing polyphenylene ether15 Jan 2026US 2026/0015459 A1Chem Tech Solutions, LLC
- Squaric acid-based polymers, their manufacturing processes and their uses24 Apr 2025US 2025/0129207 A1Hydro-Quebec
- Polyetheretherketone and preparation method therefor14 Nov 2024US 2024/0376262 A1Jilin Joinature Polymer Co., Ltd.
- High-temperature self-crosslinking fluorine-containing polyaryletherketone and preparation method thereof, and coating material and preparation method thereof8 Feb 2024US 2024/0043716 A1Tongling Jingda Special Magnet Wire Co., Ltd.
Most cited
By later US patents
- Phase transfer catalyzed preparation of aromatic polyether polymers113US 5,229,482 AGeneral Electric Company · 1993
- Process for preparing poly(aryl ether ketone)s19US 4,638,044 AAmoco Corporation · 1987
- Novel aromatic polyether and a process for producing an ether16US 4,931,530 AAsahi Kasei Kogyo Kabushiki Kaisha · 1990
- Process for the production of aromatic ethers and aromatic polyethers13US 4,474,932 ABayer Aktiengesellschaft · 1984
- Process for the preparation of aromatic polyethers with mixture of carbonate catalysts13US 4,636,557 AHoechst Aktiengesellschaft · 1987