C08G 65/20
Tetrahydrofuran
C08G65/20 (Tetrahydrofuran) appears on 267 US grants and 124 published applications in this corpus.
Search patents in C08G- Granted patents
- 267
- Published applications
- 124
- Assignees
- 93
- Inventors
- 485
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 11 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 12 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 13 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 2 |
| 2002 | 14 | 3 |
| 2003 | 3 | 6 |
| 2004 | 7 | 12 |
| 2005 | 6 | 3 |
| 2006 | 9 | 12 |
| 2007 | 4 | 3 |
| 2008 | 3 | 2 |
| 2009 | 5 | 5 |
| 2010 | 1 | 6 |
| 2011 | 6 | 5 |
| 2012 | 2 | 4 |
| 2013 | 6 | 7 |
| 2014 | 7 | 7 |
| 2015 | 7 | 9 |
| 2016 | 3 | 6 |
| 2017 | 3 | 3 |
| 2018 | 6 | 5 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 3 | 5 |
| 2023 | 0 | 8 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Copolyetherester1 Sep 2026US 12,723,153 B2Celanese Polymers Holding, Inc.
- Polyetherester21 Jul 2026US 12,686,769 B2Celanese Polymers Holding, Inc.
- Cationically curable composition and method for the joining, casting and coating of substrates using the composition12 Aug 2025US 12,384,873 B2Delo Industrie Klebstoffe GmbH & Co. Kgaa
- Polyalkylene ether glycol composition and method for producing the same4 Feb 2025US 12,215,191 B2Mitsubishi Chemical Corporation
- Polyalkylene ether glycol composition and method for producing polyurethane using the same22 Oct 2024US 12,122,911 B2Mitsubishi Chemical Corporation
- Acid-resistant polyurethane and method for producing the same20 Aug 2026US 2026/0242531 A1Hodogaya Chemical Co., Ltd.
- Polymer for composition for forming organic film, method for manufacturing the same, composition for forming organic film containing the polymer, method for forming organic film using the composition, and patterning process using the composition1 Jan 2026US 2026/0003285 A1Shin-Etsu Chemical Co., Ltd.
- Copolymerization reaction product of terahydrofuran and plant-derived 2-methyltetrahydrofuran, and method for producing the same12 Jun 2025US 2025/0188218 A1Hodogaya Chemical Co., Ltd.
- Catalyst having a trilobal geometry for preparing polytetrahydrofuran9 Jan 2025US 2025/0011539 A1BASF SE
- Thermoplastic Composition for Wire or Cable Jacket16 May 2024US 2024/0158630 A1DuPont Polymers, Inc.
Most cited
By later US patents
- Method for producing a non greasy protective and emollient film on the skin377US 4,608,392 ASociete Anonyme dite: L'Oreal · 1986
- Preparation of mono-substituted fluorinated oxetane prepolymers91US 5,650,483 AAerojet-General Corporation · 1997
- Initiators for cationic polymerization73US 5,124,417 AMinnesota Mining and Manufacturing Company · 1992
- Novel initiators for cationic polymerization71US 5,084,586 AMinnesota Mining and Manufacturing Company · 1992
- Food package comprised of polymer with thermally responsive permeability69US 5,254,354 ALandec Corporation · 1993