C08G 2/30
Chemical modification by after-treatment
C08G2/30 (Chemical modification by after-treatment) appears on 97 US grants and 44 published applications in this corpus.
Search patents in C08G- Granted patents
- 97
- Published applications
- 44
- Assignees
- 51
- Inventors
- 226
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 12 |
| 2015 | 3 | 4 |
| 2016 | 4 | 4 |
| 2017 | 6 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recycling of polyacetal for the production of polyoxymethylene dialkyl ethers22 Sep 2026US 12,742,054 B2Chemcom Investments BV
- Polyimide resin molded body and production method for same31 Mar 2026US 12,590,184 B2Toyo Seikan Group Holdings, Ltd.
- Releasable compositions based on polyacetals3 Mar 2026US 12,565,560 B2Delo Industrie Klebstoffe GmbH & Co. Kgaa
- Method for producing oxymethylene copolymer resin composition, and oxymethylene copolymer resin composition21 Nov 2023US 11,820,857 B2Mitsubishi Gas Chemical Company, Inc.
- Quaternary ammonium compound, and agent for suppression of generation of volatile organic compound from polyacetal by use of the same27 Oct 2020US 10,815,190 B2Asahi Kasei Kabushiki Kaisha
- Nitrogen-containing compounds and preparation method thereof, anionic resin, and anionic exchange membrane31 Jul 2025US 2025/0243309 A1EVE Hydrogen Energy Co., LTD.
- Stable poly(alkyl aldehyde)s12 Sep 2024US 2024/0301118 A1Boise State University
- Releasable compositions based on polyacetals1 Aug 2024US 2024/0254278 A1Delo Industrie Klebstoffe GmbH & Co. Kgaa
- Polyimide resin molded body and production method for same27 Jul 2023US 2023/0235123 A1Toyo Seikan Group Holdings, Ltd.
- Recycling of polyacetal for the production of polyoxymethylene dialkyl ethers18 May 2023US 2023/0151180 A1Arkema France
Most cited
By later US patents
- Polymeric acetal carboxylates116US 4,144,226 AMonsanto Company · 1979
- Detergent compositions comprising polyacetal carboxylates67US 4,146,495 AMonsanto Company · 1979
- Thermoplastic resin compositions and a method of producing the same54US 5,852,135 APolyplastics Co., Ltd. · 1998
- Process for the manufacture of bioerodible poly (orthoester)s and polyacetals49US 5,211,951 AMerck & Co., Inc. · 1993
- Perfluorinated polyether fluids36US 4,675,452 A1987