F01M
Lubricating of machines or engines in general
Official title: Lubricating of machines or engines in general; lubricating internal combustion engines; crankcase ventilating
F01M (Lubricating of machines or engines in general) appears on 8,401 US grants and 6,726 published applications in this corpus.
Search patents in F01M- Granted patents
- 8,401
- Published applications
- 6,726
- Assignees
- 1,894
- Inventors
- 13,771
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 46 | 0 |
| 1977 | 42 | 0 |
| 1978 | 73 | 0 |
| 1979 | 33 | 0 |
| 1980 | 44 | 0 |
| 1981 | 63 | 0 |
| 1982 | 46 | 0 |
| 1983 | 76 | 0 |
| 1984 | 63 | 0 |
| 1985 | 101 | 0 |
| 1986 | 85 | 0 |
| 1987 | 103 | 0 |
| 1988 | 100 | 0 |
| 1989 | 113 | 0 |
| 1990 | 128 | 0 |
| 1991 | 122 | 0 |
| 1992 | 114 | 0 |
| 1993 | 108 | 0 |
| 1994 | 96 | 0 |
| 1995 | 111 | 0 |
| 1996 | 156 | 0 |
| 1997 | 104 | 0 |
| 1998 | 138 | 0 |
| 1999 | 170 | 0 |
| 2000 | 178 | 0 |
| 2001 | 189 | 69 |
| 2002 | 202 | 190 |
| 2003 | 225 | 188 |
| 2004 | 170 | 236 |
| 2005 | 159 | 197 |
| 2006 | 179 | 172 |
| 2007 | 139 | 188 |
| 2008 | 130 | 215 |
| 2009 | 106 | 226 |
| 2010 | 141 | 237 |
| 2011 | 153 | 231 |
| 2012 | 188 | 258 |
| 2013 | 207 | 274 |
| 2014 | 227 | 309 |
| 2015 | 251 | 380 |
| 2016 | 270 | 420 |
| 2017 | 315 | 398 |
| 2018 | 377 | 463 |
| 2019 | 404 | 424 |
| 2020 | 445 | 412 |
| 2021 | 374 | 307 |
| 2022 | 375 | 256 |
| 2023 | 257 | 193 |
| 2024 | 220 | 180 |
| 2025 | 186 | 166 |
| 2026 | 99 | 137 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F01M 11/00Component parts, details or accessories, not provided for in, or of interest3,962
- F01M 1/00Pressure lubrication2,845
- F01M 13/00Crankcase ventilating or breathing2,080
- F01M 5/00Heating, cooling, or controlling temperature of lubricant982
- F01M 9/00Lubrication means having pertinent characteristics not provided for in, or of interest857
- F01M 3/00Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or249
- F01M 2250/00MeasuringIndexing code164
- F01M 7/00Lubrication means specially adapted for machine or engine running-in22
Recent patents
- Systems and methods for rotating coalescers maintaining positive recirculation through a dynamic seal6 Oct 2026US 12,752,228 B2Atmus Filtration IP Inc.
- Crankcase oil separation device for internal combustion engine6 Oct 2026US 12,752,229 B2Caterpillar Inc.
- Oil sump, in particular oil filter module, with a multi-part housing6 Oct 2026US 12,753,711 B2Schwäbische Hüttenwerke Automotive GmbH
- Air-fluid separator6 Oct 2026US 12,753,712 B2Improved Racing Products, LLC
- Engine control apparatus6 Oct 2026US 12,753,734 B2Subaru Corporation
- Modular container and system including same8 Oct 2026US 2026/0307857 A1Rpm Industries, LLC
- Fluid pan module8 Oct 2026US 2026/0309064 A1Mahle International GmbH
- Engine oil replacement cycle optimization apparatus and method8 Oct 2026US 2026/0309065 A1Hyundai Motor Company
- Oil Level Sensing and Fault Detection8 Oct 2026US 2026/0309537 A1Textron Aviation Inc.
- Oil separator structure for blow-by gas recirculation system, and vehicle1 Oct 2026US 2026/0295464 A1Isuzu Motors Limited
Most cited
By later US patents
- Intelligent fluid sensor for machinery diagnostics, prognostics, and control294US 7,581,434 B1Rockwell Automation Technologies, Inc. · 2009
- 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
- Air cleaner; replaceable filter cartridges; and, methods141US 7,070,642 B2Donaldson Company, Inc. · 2006
- Oil filter with oil improving dissolving body139US 4,075,097 AMonroe Auto Equipment Company · 1978