F01M 1/00
Pressure lubrication
F01M1/00 (Pressure lubrication) appears on 2,845 US grants and 2,345 published applications in this corpus.
Search patents in F01M- Granted patents
- 2,845
- Published applications
- 2,345
- Assignees
- 822
- Inventors
- 5,155
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 20 | 0 |
| 1978 | 28 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 17 | 0 |
| 1982 | 14 | 0 |
| 1983 | 24 | 0 |
| 1984 | 26 | 0 |
| 1985 | 24 | 0 |
| 1986 | 21 | 0 |
| 1987 | 28 | 0 |
| 1988 | 22 | 0 |
| 1989 | 43 | 0 |
| 1990 | 40 | 0 |
| 1991 | 40 | 0 |
| 1992 | 42 | 0 |
| 1993 | 37 | 0 |
| 1994 | 24 | 0 |
| 1995 | 30 | 0 |
| 1996 | 50 | 0 |
| 1997 | 37 | 0 |
| 1998 | 53 | 0 |
| 1999 | 55 | 0 |
| 2000 | 60 | 0 |
| 2001 | 64 | 34 |
| 2002 | 65 | 75 |
| 2003 | 98 | 68 |
| 2004 | 64 | 91 |
| 2005 | 58 | 79 |
| 2006 | 66 | 46 |
| 2007 | 52 | 49 |
| 2008 | 38 | 69 |
| 2009 | 25 | 71 |
| 2010 | 42 | 67 |
| 2011 | 44 | 71 |
| 2012 | 59 | 109 |
| 2013 | 70 | 100 |
| 2014 | 85 | 95 |
| 2015 | 91 | 127 |
| 2016 | 89 | 159 |
| 2017 | 104 | 150 |
| 2018 | 131 | 172 |
| 2019 | 163 | 160 |
| 2020 | 161 | 152 |
| 2021 | 132 | 96 |
| 2022 | 132 | 76 |
| 2023 | 85 | 64 |
| 2024 | 68 | 59 |
| 2025 | 54 | 61 |
| 2026 | 33 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01M 1/02Pressure lubrication: using lubricating pumps960
- F01M 1/10Lubricating systems characterised by the provision therein of lubricant venting or purifying715
- F01M 1/16Controlling lubricant pressure or quantity556
- F01M 1/12Closed-circuit lubricating systems not provided for in groups f01m1/02 - f01m1/10449
- F01M 1/08Lubricating systems characterised by the provision therein of lubricant jetting means355
- F01M 1/18Indicating or safety devices266
- F01M 1/06Lubricating systems characterised by the provision therein of crankshafts or connecting rods237
- F01M 1/04Pressure lubrication: using pressure in working cylinder or crankcase to operate lubricant129
All 9 subgroupsShow fewer
Recent patents
- Engine control apparatus6 Oct 2026US 12,753,734 B2Subaru Corporation
- Refrigerant circulation system29 Sep 2026US 12,747,898 B2Mazda Motor Corporation
- Module for attracting and detecting debris1 Sep 2026US 12,723,526 B2Safran Aero Boosters SA
- Controller, method, and engine system for engine crank control18 Aug 2026US 12,710,002 B2Cummins Power Generation Inc.
- Information processing device4 Aug 2026US 12,700,273 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods of lubrication of engines24 Sep 2026US 2026/0286869 A1Cummins Power Generation Inc.
- Mechanism for online continuous purification of hydraulic and/or lubricating oil using available system pressure24 Sep 2026US 2026/0286991 A1
- Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods17 Sep 2026US 2026/0275845 A1BJ Energy Solutions, LLC
- Lubrication and/or cooling oil supply circuit in a car17 Sep 2026US 2026/0275887 A1Ferrari S.P. A.
- Discharge apparatus10 Sep 2026US 2026/0266205 A1Isuzu Motors Limited
Most cited
By later US patents
- Masking elements for dissolving oil improving body in an oil filter146US 4,075,098 AMonroe Auto Equipment Company · 1978
- Fracturing device144US 11,143,006 B1Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. · 2021
- Oil filter with oil improving dissolving body139US 4,075,097 AMonroe Auto Equipment Company · 1978
- Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods133US 11,236,739 B2BJ Energy Solutions, LLC · 2022
- Engine having a high pressure hydraulic system and low pressure lubricating system131US 6,067,962 ACaterpillar Inc. · 2000