C08G 2/34
By etherification
Official title: by etherification
C08G2/34 (By etherification) appears on 13 US grants and 9 published applications in this corpus.
Search patents in C08G- Granted patents
- 13
- Published applications
- 9
- Assignees
- 14
- Inventors
- 35
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyimide resin molded body and production method for same31 Mar 2026US 12,590,184 B2Toyo Seikan Group Holdings, Ltd.
- Aromatic hydrocarbon formaldehyde resin, modified aromatic hydrocarbon formaldehyde resin and epoxy resin, and method for producing these8 Aug 2017US 9,725,551 B2Mitsubishi Gas Chemical Company, Inc.
- Method for producing polyoxymethylene dimethyl ethers23 Feb 2016US 9,266,990 B2Shandong Yuhuang Chemical Co., Ltd.
- Reaction system and process for preparing polymethoxy dimethyl ether27 Oct 2015US 9,168,503 B2Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
- Method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed28 Jul 2015US 9,090,842 B2Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd.
- Polyimide resin molded body and production method for same27 Jul 2023US 2023/0235123 A1Toyo Seikan Group Holdings, Ltd.
- Method for producing polyoxymethylene dimethyl ethers from feedstock of concentrated formaldehyde16 Jun 2016US 2016/0168307 A1China University Of Petroleum (Eastern China)
- Aromatic hydrocarbon formaldehyde resin, modified aromatic hydrocarbon formaldehyde resin, and epoxy resin, and method for producing these12 May 2016US 2016/0130383 A1Mitsubishi Gas Chemical Company, Inc.
- Method for Producing Polyoxymethylene Dimethyl Ethers15 Oct 2015US 2015/0291722 A1Shandong Yuhuang Chemical Co., Ltd.
- Reaction system and process for preparing polymethoxy dimethyl ether2 Apr 2015US 2015/0094497 A1Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
Most cited
By later US patents
- Polyacetal and process of producing same20US 4,377,667 AAsahi Kasei Kogyo Kabushiki Kaisha · 1983
- Process for the stabilization of polyacetal reins14US 3,998,791 ASocieta' Italiana Resine S.I.R. S.p.A. · 1976
- Process for the preparation of etherified acetal polymers11US 4,097,453 ASocieta' Italiana Resine S.I.R. S.p.A. · 1978
- Modified oxymethylene polymers5US 6,506,838 B1Asahi Kasei Kabushiki Kaisha · 2003
- Process for improving the stability of acetal polymers2US 4,268,643 ASocieta' Italiana Resine S.I.R. S.p.A. · 1981