G01M 15/044
By monitoring power
Official title: {by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests}
G01M15/044 (By monitoring power) appears on 178 US grants and 96 published applications in this corpus.
Search patents in G01M- Granted patents
- 178
- Published applications
- 96
- Assignees
- 103
- Inventors
- 365
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 3 |
| 2003 | 5 | 8 |
| 2004 | 6 | 3 |
| 2005 | 3 | 7 |
| 2006 | 7 | 5 |
| 2007 | 2 | 1 |
| 2008 | 4 | 1 |
| 2009 | 2 | 3 |
| 2010 | 3 | 4 |
| 2011 | 1 | 5 |
| 2012 | 3 | 2 |
| 2013 | 4 | 3 |
| 2014 | 4 | 3 |
| 2015 | 2 | 4 |
| 2016 | 5 | 7 |
| 2017 | 3 | 3 |
| 2018 | 4 | 8 |
| 2019 | 6 | 9 |
| 2020 | 10 | 5 |
| 2021 | 4 | 4 |
| 2022 | 7 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle body fuel consumption determination based on sensor data15 Jul 2025US 12,359,952 B2The Heil Co.
- System for monitoring the health of a helicopter24 Sep 2024US 12,097,977 B2Safran
- Test kit for executing a sequence of individual cylinder tests13 Feb 2024US 11,898,933 B2DAF Trucks N. V.
- Vehicle body fuel consumption determination based on sensor data20 Dec 2022US 11,530,940 B2The Heil Co.
- Engine testing mechanism4 Oct 2022US 11,460,374 B1
- Systems and methods for pre-testing and assembling sub-assemblies for a retrofitted machine4 Jun 2026US 2026/0153409 A1Caterpillar Inc.
- Vehicle body fuel consumption determination based on sensor data4 Dec 2025US 2025/0369788 A1The Heil Co.
- Portable on-vehicle dynamometer30 Oct 2025US 2025/0334464 A1Magicmotorsport S.R.L.
- Device Diagnosis System24 Oct 2024US 2024/0353291 A1Hitachi Industrial Products, Ltd.
- Vehicle body fuel consumption determination based on sensor data20 Apr 2023US 2023/0124529 A1The Heil Co.
Most cited
By later US patents
- IC engine cylinder output power measurement apparatus by monitoring the output of an alternator driven by the engine196US 5,087,881 A1992
- Method and apparatus for inspecting vehicles127US 4,441,359 ANissan Motor Co., Ltd. · 1984
- Engine test and display apparatus45US 4,125,894 ASun Electric Corporation · 1978
- Emulation system for a motor vehicle drivetrain41US 4,680,959 AGeneral Motors Corporation · 1987
- Transient driving cycle simulator test system35US 4,466,294 AEdi · 1984