C10N 2040/26
Two-strokes or two-cycle engines
Official title: Two-strokes {or two-cycle engines}
C10N2040/26 (Two-strokes or two-cycle engines) appears on 397 US grants and 184 published applications in this corpus.
Search patents in C10N- Granted patents
- 397
- Published applications
- 184
- Assignees
- 111
- Inventors
- 599
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 13 | 0 |
| 1978 | 17 | 0 |
| 1979 | 11 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 9 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 14 | 0 |
| 1994 | 26 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 26 | 0 |
| 1998 | 22 | 0 |
| 1999 | 20 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 9 | 13 |
| 2003 | 12 | 9 |
| 2004 | 3 | 7 |
| 2005 | 2 | 6 |
| 2006 | 1 | 7 |
| 2007 | 4 | 5 |
| 2008 | 2 | 1 |
| 2009 | 2 | 7 |
| 2010 | 4 | 3 |
| 2011 | 1 | 9 |
| 2012 | 2 | 10 |
| 2013 | 7 | 11 |
| 2014 | 8 | 17 |
| 2015 | 8 | 6 |
| 2016 | 9 | 16 |
| 2017 | 8 | 12 |
| 2018 | 4 | 7 |
| 2019 | 3 | 12 |
| 2020 | 9 | 4 |
| 2021 | 5 | 3 |
| 2022 | 4 | 6 |
| 2023 | 5 | 5 |
| 2024 | 3 | 3 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Production of cylinder oil17 Jun 2025US 12,331,263 B2A.P. Moller-Maersk A/S
- Lubricating composition to prevent corrosion and/or tribocorrosion of metallic parts in an engine7 Jan 2025US 12,187,973 B2Totalenergies Onetech
- Lubricating composition for fuel efficient motorcycle applications24 Sep 2024US 12,098,347 B2Afton Chemical Corporation
- Method for reducing and/or controlling abnormal gas combustion in a marine engine or a controlled-ignition engine23 Jul 2024US 12,043,815 B2Total Marketing Services
- Lubricant composition and use as a lubricant additive of guanidinium-based ionic liquids20 Feb 2024US 11,905,485 B2Total Marketing Services
- Lubricant Compositions Providing Robust Valvetrain Wear Protection in the Ford 6.7L Engine Test26 Jun 2025US 2025/0207054 A1Infineum International Limited
- Method for deodorizing regenerated lubricating oils using supercritical co29 Jan 2025US 2025/0011676 A1Totalenergies Onetech
- Method for regenerating used lubricants using supercritical co29 Jan 2025US 2025/0011677 A1Totalenergies Onetech
- Spiro compound as detergent additive in lubricants for marine engines5 Dec 2024US 2024/0400932 A1Totalenergies Onetech
- Lubricating composition for fuel efficient motorcycle applications4 Apr 2024US 2024/0110123 A1Afton Chemical Corporation
Most cited
By later US patents
- Sulfurized compositions102US 4,119,549 AThe Lubrizol Corporation · 1978
- Nitrogenous dispersants, lubricants and concentrates containing said nitrogenous dispersants102US 4,454,059 AThe Lubrizol Corporation · 1984
- Dispersants and process for their preparation88US 3,980,569 AThe Lubrizol Corporation · 1976
- Dispersant additives derived from lactone modified amido-amine adducts78US 4,963,275 AExxon Chemical Patents Inc. · 1990
- Sulfurized compositions74US 4,191,659 AThe Lubrizol Corporation · 1980