F01K 23/065
The combustion taking place in an internal combustion piston engine
Official title: {the combustion taking place in an internal combustion piston engine, e.g. a diesel engine}
F01K23/065 (The combustion taking place in an internal combustion piston engine) appears on 446 US grants and 571 published applications in this corpus.
Search patents in F01K- Granted patents
- 446
- Published applications
- 571
- Assignees
- 202
- Inventors
- 834
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 3 |
| 2003 | 1 | 5 |
| 2004 | 6 | 18 |
| 2005 | 9 | 13 |
| 2006 | 10 | 9 |
| 2007 | 3 | 10 |
| 2008 | 7 | 7 |
| 2009 | 4 | 16 |
| 2010 | 7 | 28 |
| 2011 | 7 | 32 |
| 2012 | 10 | 45 |
| 2013 | 18 | 47 |
| 2014 | 32 | 41 |
| 2015 | 30 | 53 |
| 2016 | 23 | 37 |
| 2017 | 35 | 54 |
| 2018 | 44 | 37 |
| 2019 | 38 | 40 |
| 2020 | 36 | 27 |
| 2021 | 28 | 10 |
| 2022 | 14 | 13 |
| 2023 | 15 | 9 |
| 2024 | 9 | 7 |
| 2025 | 8 | 8 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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By later US patents
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