G01M 15/09
By monitoring pressure in fluid ducts
Official title: by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts
G01M15/09 (By monitoring pressure in fluid ducts) appears on 203 US grants and 173 published applications in this corpus.
Search patents in G01M- Granted patents
- 203
- Published applications
- 173
- Assignees
- 116
- Inventors
- 381
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 5 |
| 2003 | 4 | 5 |
| 2004 | 3 | 2 |
| 2005 | 4 | 4 |
| 2006 | 4 | 2 |
| 2007 | 2 | 2 |
| 2008 | 5 | 9 |
| 2009 | 1 | 10 |
| 2010 | 8 | 8 |
| 2011 | 7 | 3 |
| 2012 | 5 | 8 |
| 2013 | 4 | 12 |
| 2014 | 10 | 13 |
| 2015 | 8 | 10 |
| 2016 | 13 | 11 |
| 2017 | 12 | 10 |
| 2018 | 15 | 11 |
| 2019 | 8 | 17 |
| 2020 | 9 | 9 |
| 2021 | 13 | 5 |
| 2022 | 8 | 5 |
| 2023 | 8 | 5 |
| 2024 | 3 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for diagnosing a crankcase ventilation system of an internal combustion engine6 Oct 2026US 12,754,103 B2Volkswagen Aktiengesellschaft
- Testing system for measuring target operational parameters of a motor vehicle16 Dec 2025US 12,499,721 B2
- Engine pre turbine pressure monitoring system23 Sep 2025US 12,422,338 B2DAF Trucks N. V.
- Electronic control of fluid operations for machines29 Jul 2025US 12,372,983 B2Rpm Industries, LLC
- Method and device for regulating the pressure of the combustion gas and/or exhaust gas of a machine4 Mar 2025US 12,241,427 B2Kristl, Seibt & Co. Gesellschaft M.B.H.
- Abnormality diagnosis device for internal combustion engine15 Jan 2026US 2026/0016373 A1Toyota Jidosha Kabushiki Kaisha
- System and method for detecting fuel leaks in hydrogen combustion engines30 Oct 2025US 2025/0334484 A1Cummins Inc.
- Electronic control of fluid operations for machines30 Oct 2025US 2025/0334981 A1Rpm Industries, LLC
- Electronic control of fluid operations for machines19 Dec 2024US 2024/0419194 A1Rpm Industries, LLC
- Testing system for measuring target operational parameters of a motor vehicle31 Oct 2024US 2024/0362958 A1A & E Incorporated
Most cited
By later US patents
- Method and apparatus for diagnosing problems with the thermodynamic performance of a heat engine94US 5,073,862 A1991
- Frequency domain engine defect signal analysis61US 4,424,709 AFord Motor Company · 1984
- Method of detecting low compression pressure responsive to crankshaft acceleration measurement and apparatus therefor56US 5,915,272 AMotorola, Inc. · 1999
- Process for the regulation of the optimum operational behavior of an internal combustion engine47US 4,112,879 ARobert Bosch GmbH · 1978
- Method and system for transient airflow compensation in an internal combustion engine39US 7,380,447 B2Ford Global Technologies, LLC · 2008