G01M 3/025
Details with respect to the testing of engines or engine parts
Official title: {Details with respect to the testing of engines or engine parts}
G01M3/025 (Details with respect to the testing of engines or engine parts) appears on 242 US grants and 253 published applications in this corpus.
Search patents in G01M- Granted patents
- 242
- Published applications
- 253
- Assignees
- 140
- Inventors
- 552
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 0 |
| 2003 | 3 | 4 |
| 2004 | 2 | 6 |
| 2005 | 7 | 9 |
| 2006 | 8 | 6 |
| 2007 | 2 | 3 |
| 2008 | 4 | 1 |
| 2009 | 2 | 4 |
| 2010 | 1 | 5 |
| 2011 | 3 | 5 |
| 2012 | 2 | 9 |
| 2013 | 8 | 22 |
| 2014 | 4 | 7 |
| 2015 | 10 | 17 |
| 2016 | 11 | 18 |
| 2017 | 14 | 18 |
| 2018 | 14 | 21 |
| 2019 | 22 | 13 |
| 2020 | 16 | 21 |
| 2021 | 20 | 14 |
| 2022 | 12 | 10 |
| 2023 | 10 | 20 |
| 2024 | 12 | 7 |
| 2025 | 7 | 4 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Additive inflatable leak check bladder23 Jun 2026US 12,663,330 B2Rtx Corporation
- Performance testing device for piston rod sealing assembly16 Jun 2026US 12,656,220 B2Tsinghua University
- Systems and methods for hydrogen leak detection2 Jun 2026US 12,646,729 B2Cummins Inc.
- Nitrogen compression system for leakage test on gas pipeline used for engine and vessel including the same28 Apr 2026US 12,613,004 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Diagnosis system and processing device6 Aug 2026US 2026/0227265 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Drive Apparatus for Driving a Component of a Container Treatment System21 May 2026US 2026/0139740 A1
- Method for checking the tightness of an element such as a fluid machine or a valve21 May 2026US 2026/0140007 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Automated vapor generating machine9 Apr 2026US 2026/0098780 A1Proflex+Distribution Inc.
- Fuel leak diagnostic system2 Apr 2026US 2026/0092587 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Crankcase ventilation system diagnostic46US 5,792,949 AGeneral Motors Corporation · 1998
- Positive crankcase ventilation system diagnostic35US 5,897,597 AGeneral Motors Corporation · 1999
- Automotive evaporative emission leak detection system and method32US 6,016,690 ASiemens Canada Limited · 2000
- Apparatus and method for testing, filling and purging closed fluid systems31US 4,782,689 A1988
- Leak tester and leak testing method30US 5,795,995 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1998