F01M 2011/148
By considering viscosity
Official title: {by considering viscosity}
F01M2011/148 (By considering viscosity) appears on 43 US grants and 45 published applications in this corpus.
Search patents in F01M- Granted patents
- 43
- Published applications
- 45
- Assignees
- 33
- Inventors
- 107
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 2 |
| 2004 | 2 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 4 | 1 |
| 2013 | 3 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 5 |
| 2019 | 1 | 4 |
| 2020 | 6 | 4 |
| 2021 | 3 | 3 |
| 2022 | 4 | 5 |
| 2023 | 2 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Autonomous oil change system19 May 2026US 12,631,134 B2Rpm Industries, LLC
- Fluid condition sensing system and methods14 Apr 2026US 12,601,699 B2Donaldson Company, Inc.
- Prognostics in hydraulic transmission system using e-machine drive27 Jan 2026US 12,535,091 B2Deere & Company
- Oil quality monitoring7 Jan 2025US 12,188,387 B2Toyota Motor North America, Inc.
- Autonomous oil change system1 Oct 2024US 12,104,509 B2Rpm Industries, LLC
- Fluid condition sensing system and methods13 Aug 2026US 2026/0235542 A1Donaldson Company, Inc.
- Autonomous oil change system20 Feb 2025US 2025/0059900 A1Rpm Industries, LLC
- Prognostics in hydraulic transmission system using e-machine drive24 Oct 2024US 2024/0352953 A1Deere & Company
- Fluid condition sensing system and methods29 Dec 2022US 2022/0412912 A1Donaldson Company, Inc.
- Systems and methods for lubricant dilution detection29 Sep 2022US 2022/0307395 A1Caterpillar Inc.
Most cited
By later US patents
- Intelligent fluid sensor for machinery diagnostics, prognostics, and control294US 7,581,434 B1Rockwell Automation Technologies, Inc. · 2009
- Method for determining a remaining life of engine oil76US 5,750,887 ACaterpillar Inc. · 1998
- Method for determining oil viscosity16US 6,575,018 B2Delphi Technologies, Inc. · 2003
- Apparatus and method for determining oil change based upon oil viscosity15US 6,901,788 B2Delphi Technologies, Inc. · 2005
- Method and system for estimating engine oil life based on viscosity11US 8,109,138 B2GM Global Technology Operations LLC · 2012