F02B 77/08
Safety, indicating, or supervising devices
Official title: Safety, indicating, or supervising devices (thermal insulation F02B77/11; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00)
F02B77/08 (Safety, indicating, or supervising devices) appears on 789 US grants and 503 published applications in this corpus.
Search patents in F02B- Granted patents
- 789
- Published applications
- 503
- Assignees
- 357
- Inventors
- 1,799
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 19 | 0 |
| 1982 | 11 | 0 |
| 1983 | 19 | 0 |
| 1984 | 26 | 0 |
| 1985 | 25 | 0 |
| 1986 | 17 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 18 | 0 |
| 1991 | 19 | 0 |
| 1992 | 15 | 0 |
| 1993 | 17 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 16 | 0 |
| 1997 | 8 | 0 |
| 1998 | 19 | 0 |
| 1999 | 15 | 0 |
| 2000 | 15 | 0 |
| 2001 | 9 | 7 |
| 2002 | 13 | 12 |
| 2003 | 18 | 22 |
| 2004 | 13 | 11 |
| 2005 | 12 | 20 |
| 2006 | 19 | 16 |
| 2007 | 11 | 18 |
| 2008 | 8 | 13 |
| 2009 | 9 | 10 |
| 2010 | 11 | 12 |
| 2011 | 10 | 15 |
| 2012 | 6 | 6 |
| 2013 | 5 | 25 |
| 2014 | 11 | 18 |
| 2015 | 10 | 21 |
| 2016 | 21 | 40 |
| 2017 | 29 | 35 |
| 2018 | 37 | 42 |
| 2019 | 29 | 39 |
| 2020 | 39 | 42 |
| 2021 | 41 | 25 |
| 2022 | 21 | 18 |
| 2023 | 14 | 11 |
| 2024 | 11 | 8 |
| 2025 | 11 | 10 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 77/085With sensors measuring combustion processes211
- F02B 77/083Relating to maintenance76
- F02B 77/087Determining top dead centre or ignition-timing47
- F02B 77/089Relating to engine temperature37
- F02B 77/084Indicating economy35
- F02B 77/082Relating to valves26
- F02B 77/10Safety means relating to crankcase explosions23
- F02B 77/081Relating to endless members22
All 9 subgroupsShow fewer
Recent patents
- Exhaust system25 Aug 2026US 12,715,567 B2Yanmar Holdings Co., Ltd.
- Air pressure limiting valve diagnostic systems and methods7 Apr 2026US 12,597,302 B2International Engine Intellectual Property Company, LLC
- Method for detecting slip in a belt driven integrated starter system17 Mar 2026US 12,577,903 B2Ford Global Technologies, LLC
- Engine cylinder head with temperature-reducing pressure sensor bore3 Mar 2026US 12,565,853 B2Caterpillar Inc.
- Internal combustion engine misfire detecting device and misfire detecting method13 Jan 2026US 12,523,170 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Engine diagnosis system and engine diagnosis method20 Aug 2026US 2026/0243628 A1Komatsu Ltd.
- Carbon monoxide detecting system for internal combustion engine-based machines23 Jul 2026US 2026/0210305 A1Generac Power Systems, Inc.
- Misfire detection device and misfire detection method of internal combustion engine11 Jun 2026US 2026/0160202 A1Mikuni Corporation
- Engine anomaly detection and mitigation systems11 Jun 2026US 2026/0160203 A1
- Internal combustion engines and cylinder heads configured for in-cylinder pressure sensors12 Mar 2026US 2026/0071570 A1Cummins Inc.
Most cited
By later US patents
- Diagnosis system for a motor vehicle161US 4,926,330 AFuji Jukogyo Kabushiki Kaisha · 1990
- Modular automotive diagnostic, test and information system132US 5,916,287 AHewlett-Packard Company · 1999
- Optoelectronic measuring device for monitoring a combustion chamber127US 5,384,467 AAVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof. Dr. Dr. h.c. Hans List · 1995
- System for monitoring and improving motor vehicle operating efficiency125US 4,280,457 A1981
- Optoelectric measuring device for monitoring combustion processes117US 6,320,184 B1AVL List GmbH · 2001