F02B 53/12
Ignition
F02B53/12 (Ignition) appears on 140 US grants and 107 published applications in this corpus.
Search patents in F02B- Granted patents
- 140
- Published applications
- 107
- Assignees
- 53
- Inventors
- 202
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 4 | 4 |
| 2014 | 0 | 5 |
| 2015 | 5 | 14 |
| 2016 | 8 | 12 |
| 2017 | 8 | 13 |
| 2018 | 16 | 7 |
| 2019 | 12 | 8 |
| 2020 | 11 | 5 |
| 2021 | 5 | 4 |
| 2022 | 3 | 6 |
| 2023 | 6 | 6 |
| 2024 | 12 | 5 |
| 2025 | 5 | 8 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Ignition device for rotary piston engine40US 4,202,312 AToyota Jidosha Kogyo Kabushiki Kaisha · 1980
- Rotary internal combustion engine with pilot subchamber22US 9,528,434 B1Pratt & Whitney Canada Corp. · 2016
- Gaseous ignition system for internal combustion engine17US 3,958,538 ANissan Motor Co., Ltd. · 1976
- Rotary engine with dual spark plugs and fuel injectors17US 5,022,366 AJohn Deere Technologies International, Inc. · 1991
- Rotary internal combustion engine with pilot subchamber16US 9,038,594 B2Pratt & Whitney Canada Corp. · 2015