C10M 2227/062
Cyclic esters
C10M2227/062 (Cyclic esters) appears on 285 US grants and 92 published applications in this corpus.
Search patents in C10M- Granted patents
- 285
- Published applications
- 92
- Assignees
- 82
- Inventors
- 397
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 17 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 17 | 0 |
| 1998 | 13 | 0 |
| 1999 | 17 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 6 |
| 2003 | 9 | 8 |
| 2004 | 1 | 5 |
| 2005 | 3 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 4 |
| 2009 | 5 | 4 |
| 2010 | 2 | 7 |
| 2011 | 1 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 2 |
| 2014 | 1 | 6 |
| 2015 | 1 | 3 |
| 2016 | 5 | 5 |
| 2017 | 1 | 2 |
| 2018 | 0 | 6 |
| 2019 | 6 | 9 |
| 2020 | 2 | 4 |
| 2021 | 3 | 4 |
| 2022 | 6 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method to minimize conductive deposits20 Jan 2026US 12,529,004 B2The Lubrizol Corporation
- Spiro compound as detergent additive in lubricants for motorization systems4 Nov 2025US 12,460,148 B2Totalenergies Onetech
- Thermoassociative and exchangeable copolymers, composition comprising same2 Jan 2024US 11,859,150 B2Centre National De La Recherche Scientifique
- Composition comprising thermoassociative and exchangeable copolymers12 Dec 2023US 11,840,593 B2Centre National De La Cherche Scentifique
- Aliphatic tetrahedral borate compounds for lubricating compositions4 Oct 2022US 11,459,520 B2The Lubrizol Corporation
- Fluid dynamic bearing, spindle motor, and disk drive device14 May 2026US 2026/0132350 A1
- Method to Minimize Conductive Deposits4 Sep 2025US 2025/0277162 A1The Lubrizol Corporation
- Organoboron compound, preparation method thereof, and use thereof9 Jan 2025US 2025/0011341 A1China Petroleum & Chemical Corporation
- Spiro compound as detergent additive in lubricants for motorization systems5 Dec 2024US 2024/0400928 A1Totalenergies Onetech
- Lubricating composition for preventing or reducing abnormal combustion in an engine5 Dec 2024US 2024/0400929 A1Totalenergies Onetech
Most cited
By later US patents
- Low ash lubricant compositions for internal combustion engines (PT-727)59US 5,102,566 AExxon Chemical Patents Inc. · 1992
- Borated oxazolines as varnish inhibiting dispersants in lubricating oils57US 4,116,876 AExxon Research & Engineering Co. · 1978
- Polyalkylene succinimides and post-treated derivatives thereof54US 5,716,912 AChevron Chemical Company · 1998
- Succinimide complexes of borated fatty acid esters of glycerol and lubricating oil compositions containing same51US 4,455,243 AChevron Research Company · 1984
- Lubricant composition suitable for manual transmission fluids49US 4,792,410 AThe Lubrizol Corporation · 1988