G01M 15/08
By monitoring pressure in cylinders
Official title: by monitoring pressure in cylinders
G01M15/08 (By monitoring pressure in cylinders) appears on 256 US grants and 207 published applications in this corpus.
Search patents in G01M- Granted patents
- 256
- Published applications
- 207
- Assignees
- 125
- Inventors
- 621
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 4 | 2 |
| 2004 | 1 | 2 |
| 2005 | 4 | 4 |
| 2006 | 1 | 8 |
| 2007 | 7 | 5 |
| 2008 | 6 | 5 |
| 2009 | 4 | 6 |
| 2010 | 2 | 9 |
| 2011 | 9 | 10 |
| 2012 | 4 | 7 |
| 2013 | 12 | 6 |
| 2014 | 6 | 16 |
| 2015 | 10 | 23 |
| 2016 | 8 | 23 |
| 2017 | 17 | 26 |
| 2018 | 20 | 11 |
| 2019 | 18 | 11 |
| 2020 | 11 | 8 |
| 2021 | 15 | 11 |
| 2022 | 8 | 5 |
| 2023 | 2 | 1 |
| 2024 | 6 | 3 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure sensor, system for mounting and demounting of the pressure sensor and use of the pressure sensor15 Sep 2026US 12,736,427 B2Kistler Holding AG
- Integrated leak detection device for engine cylinder7 Apr 2026US 12,596,056 B2
- Testing system for measuring target operational parameters of a motor vehicle16 Dec 2025US 12,499,721 B2
- Optimized high-speed cylinder pressure data retrieval and reporting5 Aug 2025US 12,379,285 B1Caterpillar Inc.
- Pressure detection device with detachable temperature reducing buffer member29 Oct 2024US 12,130,201 B2Citizen Finedevice Co., Ltd.
- Integrated leak detection device for engine cylinder19 Mar 2026US 2026/0079079 A1
- Ignition diagnostic system for internal combustion engine (ice) and method of operating the same29 Jan 2026US 2026/0028957 A1Federal-Mogul Ignition Company
- Engine-knocking determining device and method15 May 2025US 2025/0155322 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Testing system for measuring target operational parameters of a motor vehicle31 Oct 2024US 2024/0362958 A1A & E Incorporated
- Pressure detection device1 Aug 2024US 2024/0255382 A1Citizen Finedevice Co., Ltd.
Most cited
By later US patents
- Device for determining load in an internal combustion engine199US 6,167,755 ARobert Bosch GmbH · 2001
- Optoelectronic measuring device111US 6,649,924 B1AVL List GmbH · 2003
- Self-diagnosing apparatus and method for determining occurence of failure in inner cylinder pressure responsive sensor applicable to engine combustion detecting/controlling system94US 5,469,735 AUnisia Jecs Corporation · 1995
- Fiber optic microbend sensor for engine knock and misfire detection65US 5,421,195 A1995
- Combustion prediction and discrimination apparatus for an internal combustion engine and control apparatus therefor61US 5,093,792 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1992