C10M 129/20
Cyclic ethers having 4 or more ring atoms
Official title: Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes
C10M129/20 (Cyclic ethers having 4 or more ring atoms) appears on 75 US grants and 47 published applications in this corpus.
Search patents in C10M- Granted patents
- 75
- Published applications
- 47
- Assignees
- 49
- Inventors
- 164
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 4 |
| 2012 | 2 | 2 |
| 2013 | 1 | 4 |
| 2014 | 4 | 5 |
| 2015 | 5 | 3 |
| 2016 | 1 | 5 |
| 2017 | 3 | 4 |
| 2018 | 2 | 3 |
| 2019 | 3 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fused-ring polycyclic amine functionalized olefinic polymers for lubricating oil compositions29 Sep 2026US 12,747,406 B2Infineum International Limited
- Refrigeration cycle apparatus11 Feb 2025US 12,221,591 B2Mitsubishi Electric Corporation
- Lubricating composition for preventing or reducing pre-ignition in an engine27 Dec 2022US 11,535,806 B2Total Marketing Services
- Furniture lubricant17 May 2022US 11,332,685 B2IKEA Supply AG
- Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine9 Feb 2021US 10,913,915 B2The Lubrizol Corporation
- Fused-ring polycyclic amine functionalized olefinic polymers for lubricating oil compositions12 Jun 2025US 2025/0188379 A1Infineum International Limited
- Refrigeration cycle apparatus3 Aug 2023US 2023/0242833 A1Mitsubishi Electric Corporation
- Lubricating composition for preventing or reducing pre-ignition in an engine17 Feb 2022US 2022/0049177 A1Total Marketing Services
- Lubricating oil compositions having functionalized quercetin antioxidants18 Jun 2020US 2020/0190425 A1
- Composition Containing Heterocyclic Compounds And A Method Of Lubricating An Internal Combustion Engine23 Apr 2020US 2020/0123463 A1The Lubrizol Corporation
Most cited
By later US patents
- Dispersant additives derived from lactone modified amido-amine adducts78US 4,963,275 AExxon Chemical Patents Inc. · 1990
- High oleic polyol esters, compositions and lubricants, functional fluids and greases containing the same73US 5,773,391 AThe Lubrizol Corporation · 1998
- Waterborne lubricant for teflon products47US 5,712,229 ABecton, Dickinson and Company · 1998
- 3-arylbenzofuranones44US 5,516,920 ACiba-Geigy Corporation · 1996
- Biodegradable functional fluid for mechanical drives38US 7,060,199 B2TEA GmbH Technnologiezentrum, Emissionsfreie Antriebe · 2006