C10M 2207/044
Cyclic ethers having four or more ring atoms
Official title: Cyclic ethers having four or more ring atoms, e.g. furans, dioxolanes
C10M2207/044 (Cyclic ethers having four or more ring atoms) appears on 158 US grants and 82 published applications in this corpus.
Search patents in C10M- Granted patents
- 158
- Published applications
- 82
- Assignees
- 88
- Inventors
- 341
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 1 |
| 2004 | 2 | 7 |
| 2005 | 2 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 7 |
| 2009 | 1 | 4 |
| 2010 | 4 | 3 |
| 2011 | 1 | 5 |
| 2012 | 3 | 4 |
| 2013 | 3 | 7 |
| 2014 | 4 | 3 |
| 2015 | 5 | 4 |
| 2016 | 0 | 3 |
| 2017 | 3 | 6 |
| 2018 | 4 | 6 |
| 2019 | 3 | 2 |
| 2020 | 2 | 4 |
| 2021 | 3 | 2 |
| 2022 | 3 | 1 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Furan based compositions and methods of making thereof11 Aug 2026US 12,703,689 B2University of Delaware
- Friction modifiers with improved frictional properties and lubricating compositions containing the same18 Nov 2025US 12,473,508 B2The Lubrizol Corporation
- Refrigeration cycle apparatus11 Feb 2025US 12,221,591 B2Mitsubishi Electric Corporation
- Lubricant composition for water-based compositions22 Oct 2024US 12,122,977 B2Totalenergies Onetech
- Lubricating composition for preventing or reducing pre-ignition in an engine27 Dec 2022US 11,535,806 B2Total Marketing Services
- Friction modifiers with improved frictional properties and lubricating compositions containing the same24 Oct 2024US 2024/0352372 A1The Lubrizol Corporation
- Lubricant composition for water-based compositions31 Aug 2023US 2023/0272301 A1Totalenergies Onetech
- Refrigeration cycle apparatus3 Aug 2023US 2023/0242833 A1Mitsubishi Electric Corporation
- Deterioration measurement device, system, method, and lubricant oil composition9 Mar 2023US 2023/0074611 A1Idemitsu Kosan Co., Ltd.
- Lubricating composition for preventing or reducing pre-ignition in an engine17 Feb 2022US 2022/0049177 A1Total Marketing Services
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
- Lubricant for wire used for forming the stator windings of an electrical refrigerating compressor59US 6,461,730 B1Danfoss A/S · 2002
- Process of making a shaped tip on a catheter53US 5,589,120 ABecton, Dickinson and Company · 1996
- Full and lubricant compositions containing nitro phenols51US 4,347,148 AThe Lubrizol Corporation · 1982