C10M 159/00
Lubricating compositions characterised by the additive being of unknown or incompletely defined
Official title: Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution (carboxylic acids with less than 30 carbon atoms in the chain, of unknown or incompletely defined constitution C10M129/56)
C10M159/00 (Lubricating compositions characterised by the additive being of unknown or incompletely defined) appears on 2,067 US grants and 905 published applications in this corpus.
Search patents in C10M- Granted patents
- 2,067
- Published applications
- 905
- Assignees
- 440
- Inventors
- 2,678
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 21 | 0 |
| 1978 | 36 | 0 |
| 1979 | 36 | 0 |
| 1980 | 43 | 0 |
| 1981 | 37 | 0 |
| 1982 | 23 | 0 |
| 1983 | 34 | 0 |
| 1984 | 45 | 0 |
| 1985 | 42 | 0 |
| 1986 | 24 | 0 |
| 1987 | 38 | 0 |
| 1988 | 53 | 0 |
| 1989 | 59 | 0 |
| 1990 | 69 | 0 |
| 1991 | 75 | 0 |
| 1992 | 66 | 0 |
| 1993 | 84 | 0 |
| 1994 | 105 | 0 |
| 1995 | 83 | 0 |
| 1996 | 80 | 0 |
| 1997 | 76 | 0 |
| 1998 | 84 | 0 |
| 1999 | 55 | 0 |
| 2000 | 61 | 0 |
| 2001 | 52 | 11 |
| 2002 | 45 | 37 |
| 2003 | 41 | 30 |
| 2004 | 23 | 52 |
| 2005 | 22 | 33 |
| 2006 | 11 | 46 |
| 2007 | 13 | 38 |
| 2008 | 17 | 51 |
| 2009 | 24 | 44 |
| 2010 | 35 | 36 |
| 2011 | 48 | 38 |
| 2012 | 28 | 33 |
| 2013 | 37 | 40 |
| 2014 | 31 | 42 |
| 2015 | 34 | 34 |
| 2016 | 28 | 40 |
| 2017 | 33 | 55 |
| 2018 | 32 | 59 |
| 2019 | 31 | 50 |
| 2020 | 35 | 31 |
| 2021 | 22 | 16 |
| 2022 | 15 | 23 |
| 2023 | 20 | 16 |
| 2024 | 15 | 19 |
| 2025 | 14 | 18 |
| 2026 | 11 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lubricant compositions containing magnesium detergent for reduced pre-ignition in hydrogen fueled engines15 Sep 2026US 12,735,654 B2Infineum International Limited
- Lubricant additives for performance boosting1 Sep 2026US 12,723,216 B2Afton Chemical Corporation
- Sliding member14 Jul 2026US 12,680,049 B2Sumitomo Electric Industries, Ltd.
- Lubricating oil additive composition and lubricating oil composition9 Jun 2026US 12,649,889 B2Eneos Corporation
- Lubricating oil compositions and use thereof for improving journal bearing wear in internal combustion engines2 Jun 2026US 12,644,066 B2Infineum International Limited
- Production of sustainable sulfonates through treatment of re-refined base oils13 Aug 2026US 2026/0234102 A1HollyFrontier LSP Brand Strategies LLC
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures13 Aug 2026US 2026/0234491 A1Afton Chemical Corporation
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures13 Aug 2026US 2026/0234493 A1Afton Chemical Corporation
- Lubricant compositions having two base oil stocks13 Aug 2026US 2026/0234494 A1ExxonMobil Technology and Engineering Company
- High performance gear oils and related methods13 Aug 2026US 2026/0234495 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation764US 4,234,435 AThe Lubrizol Corporation · 1980
- Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives173US 5,498,809 AExxon Chemical Patents Inc. · 1996
- Process for preparing a sulfurized molybdenum-containing composition and lubricating oil containing the composition130US 4,285,822 AChevron Research Company · 1981
- Oil-soluble phosphorus antiwear additives for lubricants118US 4,857,214 AEthylk Petroleum Additives, Inc. · 1989
- Process of preparing molybdenum complexes, the complexes so-produced and lubricants containing same117US 4,265,773 AChevron Research Company · 1981