C10M 175/0091
Treatment of oils in a continuous lubricating circuit
Official title: {Treatment of oils in a continuous lubricating circuit (e.g. motor oil system)}
C10M175/0091 (Treatment of oils in a continuous lubricating circuit) appears on 99 US grants and 108 published applications in this corpus.
Search patents in C10M- Granted patents
- 99
- Published applications
- 108
- Assignees
- 64
- Inventors
- 212
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 5 |
| 2004 | 0 | 5 |
| 2005 | 2 | 5 |
| 2006 | 3 | 6 |
| 2007 | 7 | 11 |
| 2008 | 7 | 12 |
| 2009 | 4 | 6 |
| 2010 | 3 | 4 |
| 2011 | 4 | 7 |
| 2012 | 6 | 7 |
| 2013 | 0 | 4 |
| 2014 | 5 | 2 |
| 2015 | 3 | 5 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 1 | 3 |
| 2019 | 6 | 5 |
| 2020 | 2 | 0 |
| 2021 | 1 | 3 |
| 2022 | 2 | 4 |
| 2023 | 3 | 1 |
| 2024 | 3 | 2 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solvency enhancer compositions, methods of preparation and methods of use thereof10 Mar 2026US 12,570,916 B2Fluitec N.V.
- Systems and methods for removing moisture from a power transformer8 Oct 2024US 12,109,511 B2
- Method and system for circular use of industrial oil24 Sep 2024US 12,097,453 B2Skf Recondoil AB
- Solvency enhancer compositions, methods of preparation and methods of use thereof16 Apr 2024US 11,959,040 B2Fluitec N.V.
- Systems and methods for removing moisture from a power transformer31 Oct 2023US 11,801,455 B2
- Method of using machine oil, machine oil regeneration system, and method of adding machine oil regeneration unit9 Jul 2026US 2026/0193562 A1Mitsubishi Heavy Industries, Ltd.
- Lubricating oil purification system and lubricating oil purification method31 Jul 2025US 2025/0243425 A1Mitsubishi Kakoki Kaisha, Ltd.
- Integrated plant for the recovery and regeneration of used industrial and transportation oils29 May 2025US 2025/0171706 A1
- Compositions for Engine Carbon Removal from Lubricated Components13 Feb 2025US 2025/0051681 A1ATS Chemical, LLC
- Solvency enhancer compositions, methods of preparation and methods of use thereof18 Jul 2024US 2024/0240099 A1Fluitec N.V.
Most cited
By later US patents
- Oil filter containing an oil soluble thermoplastic additive material therein116US 5,591,330 AT/F Purifiner, Inc. · 1997
- Method for rejuvenating lubricating oils113US 5,069,799 AExxon Research & Engineering Co. · 1991
- Multi-stage fluid filter, and methods of making and using same112US 6,379,564 B12002
- Method for removing polynuclear aromatics from used lubricating oils111US 5,225,081 AExxon Research & Engineering Co. · 1993
- Oil filter to introduce anti-wear additives into engine lubricating system108US 6,045,692 AAlliedSignal Inc. · 2000