F02P 11/02
Preventing damage to engines or engine-driven gearing
F02P11/02 (Preventing damage to engines or engine-driven gearing) appears on 312 US grants and 113 published applications in this corpus.
Search patents in F02P- Granted patents
- 312
- Published applications
- 113
- Assignees
- 132
- Inventors
- 501
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 14 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 26 | 0 |
| 1991 | 18 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 1 |
| 2003 | 2 | 7 |
| 2004 | 9 | 5 |
| 2005 | 4 | 4 |
| 2006 | 7 | 9 |
| 2007 | 6 | 5 |
| 2008 | 4 | 6 |
| 2009 | 2 | 5 |
| 2010 | 4 | 5 |
| 2011 | 3 | 6 |
| 2012 | 5 | 2 |
| 2013 | 1 | 7 |
| 2014 | 7 | 8 |
| 2015 | 4 | 3 |
| 2016 | 6 | 7 |
| 2017 | 8 | 8 |
| 2018 | 7 | 3 |
| 2019 | 4 | 6 |
| 2020 | 7 | 5 |
| 2021 | 4 | 1 |
| 2022 | 5 | 5 |
| 2023 | 4 | 2 |
| 2024 | 1 | 0 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Internal combustion engine23 Dec 2025US 12,503,992 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Engine ignition systems15 Jul 2025US 12,359,648 B2Hamilton Sundstrand Corporation
- Electronic ignition system for a generator engine1 Jul 2025US 12,345,226 B2Champion Power Equipment, Inc.
- Methods and system for evaluating an engine for hydrolock9 Apr 2024US 11,952,971 B2Ford Global Technologies, LLC
- Ignition interrupter and related methods29 Aug 2023US 11,739,723 B1Zombiebox International LLC
- Impingement detection system for vehicle operators10 Sep 2026US 2026/0264874 A1
- Internal combustion engine22 May 2025US 2025/0163879 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Engine ignition systems26 Oct 2023US 2023/0340934 A1Hamilton Sundstrand Corporation
- Methods and system for evaluating an engine for hydrolock8 Jun 2023US 2023/0175467 A1Ford Global Technologies, LLC
- Exhaust safety system for an engine20 Oct 2022US 2022/0333545 A1Kohler Co.
Most cited
By later US patents
- Portable hand-held power tool having a data connection for diagnostic purposes96US 7,809,495 B2Andreas Stihl AG & CO.KG · 2010
- Fuel injection control system for a two-cycle engine54US 5,191,531 AFuji Jukogyo Kabushiki Kaisha · 1993
- Safety limiter for engine speed38US 4,336,778 ADelta Systems, Inc. · 1982
- Overheat preventing system for internal combustion engines35US 4,459,951 ASanshin Kogyo Kabushiki Kaisita · 1984
- Engine control device34US 7,163,000 B2Yamaha Marine Kabushiki Kaisha · 2007