F02D 35/023
By determining the cylinder pressure
Official title: {by determining the cylinder pressure}
F02D35/023 (By determining the cylinder pressure) appears on 1,462 US grants and 1,436 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,462
- Published applications
- 1,436
- Assignees
- 299
- Inventors
- 2,618
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 17 | 0 |
| 1991 | 19 | 0 |
| 1992 | 17 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 16 | 0 |
| 1998 | 18 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 21 | 9 |
| 2002 | 16 | 29 |
| 2003 | 35 | 32 |
| 2004 | 22 | 34 |
| 2005 | 35 | 48 |
| 2006 | 55 | 49 |
| 2007 | 51 | 68 |
| 2008 | 50 | 84 |
| 2009 | 46 | 91 |
| 2010 | 55 | 63 |
| 2011 | 51 | 83 |
| 2012 | 50 | 47 |
| 2013 | 70 | 62 |
| 2014 | 53 | 54 |
| 2015 | 31 | 90 |
| 2016 | 68 | 112 |
| 2017 | 82 | 94 |
| 2018 | 103 | 72 |
| 2019 | 83 | 82 |
| 2020 | 86 | 67 |
| 2021 | 73 | 42 |
| 2022 | 48 | 25 |
| 2023 | 31 | 26 |
| 2024 | 19 | 26 |
| 2025 | 24 | 27 |
| 2026 | 13 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for operating an internal combustion engine with pressure measurements or pressure estimates based on a plausibility check1 Sep 2026US 12,723,552 B2Innio Jenbacher GmbH & Co OG
- Engine control system for intake valve opening timing during cold start11 Aug 2026US 12,704,099 B2Cummins Power Generation Inc.
- Engine system with combustion control for reducing combustion variations7 Jul 2026US 12,674,428 B2Mazda Motor Corporation
- Systems and methods for adaptively managing engine knocking23 Jun 2026US 12,662,984 B2Caterpillar Inc.
- Combustion abnormality monitoring device for two-stroke engine16 Jun 2026US 12,655,809 B2Kawasaki Motors, Ltd.
- Method for synchronizing an internal combustion engine on the basis of data from signals representative of air pressure in cylinders20 Aug 2026US 2026/0243208 A1Schaeffler Technologies AG & Co. KG
- Mixed-combustion electronic control device6 Aug 2026US 2026/0226867 A1Hitachi, Ltd.
- Fuel type detection for internal combustion engine6 Aug 2026US 2026/0226868 A1Caterpillar Inc.
- Detecting knock using an arima model6 Aug 2026US 2026/0226878 A1Robert Bosch GmbH
- Deactivation mechanism and associated valve events for divided exhaust boost (deb) engine23 Jul 2026US 2026/0210303 A1Aramco Services Company
Most cited
By later US patents
- Method and apparatus for operation of combustion engines205US 6,155,212 A2000
- Device for determining load in an internal combustion engine199US 6,167,755 ARobert Bosch GmbH · 2001
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Control system for two cycle direct injection engine and the method thereof165US 6,158,411 AFuji Jukogyo Kabushiki Kaisha · 2000