C08G 75/025
Preparatory processes
C08G75/025 (Preparatory processes) appears on 473 US grants and 211 published applications in this corpus.
Search patents in C08G- Granted patents
- 473
- Published applications
- 211
- Assignees
- 100
- Inventors
- 564
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 13 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 13 | 0 |
| 1988 | 31 | 0 |
| 1989 | 35 | 0 |
| 1990 | 29 | 0 |
| 1991 | 30 | 0 |
| 1992 | 29 | 0 |
| 1993 | 29 | 0 |
| 1994 | 25 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 5 |
| 2003 | 4 | 2 |
| 2004 | 4 | 7 |
| 2005 | 1 | 6 |
| 2006 | 5 | 8 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 4 | 8 |
| 2010 | 5 | 10 |
| 2011 | 3 | 7 |
| 2012 | 8 | 5 |
| 2013 | 9 | 6 |
| 2014 | 7 | 3 |
| 2015 | 6 | 9 |
| 2016 | 5 | 12 |
| 2017 | 8 | 13 |
| 2018 | 9 | 14 |
| 2019 | 10 | 19 |
| 2020 | 18 | 17 |
| 2021 | 13 | 15 |
| 2022 | 12 | 10 |
| 2023 | 4 | 15 |
| 2024 | 4 | 9 |
| 2025 | 8 | 4 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polythiol composition and optical composition comprising same12 May 2026US 12,624,149 B2SK Pucore Co., Ltd.
- Sulfur-containing polymer, method for producing same, and sulfur-containing polymer composition21 Apr 2026US 12,606,675 B2Nippon Shokubai Co., Ltd.
- Dual cure sealants24 Feb 2026US 12,559,593 B2PRC-DeSoto International, Inc.
- Polyarylene sulfide production method17 Feb 2026US 12,552,901 B2Kureha Corporation
- Polydisulfide polymer17 Feb 2026US 12,552,935 B2HighRI Optics, Inc.
- Monomers for the formation of vitrimers1 Oct 2026US 2026/0297242 A1Airbus SAS
- Substituted polyphenylene sulfide resin20 Aug 2026US 2026/0242542 A1Daicel Corporation
- Random Copolymer28 May 2026US 2026/0146159 A1HighRI Optics, Inc.
- Disulfidated polymers and methods of preparation18 Dec 2025US 2025/0382419 A1The Regents of the University of Colorado, a body corporate
- Method for manufacturing high-reactivity polyphenylene sulfide resin and product manufactured thereby17 Jul 2025US 2025/0230284 A1Zhejiang Nhu Company Ltd.
Most cited
By later US patents
- Process for production of high to ultra-high molecular weight linear polyarylenesulfides99US 4,645,826 AKureha Kagaku Kogyo Kabushiki Kaisha · 1987
- Copoly(arylene sulfidex-disulfide)63US 4,786,713 AEastman Kodak Company · 1988
- Recovering granular poly(arylene sulfide) particles from a poly(arylene sulfide) reaction mixture62US 4,415,729 APhillips Petroleum Company · 1983
- Process for producing readily crystallizable arylenesulfide resin composition containing organic acid or anhydride52US 4,699,975 AKureha Kagaku Kogyo Kabushiki Kaisha · 1987
- Polyphenylene sulfide resin composition and a process for producing it49US 4,889,893 AToray Industries, Inc. · 1989