F02N 9/04
The pressure fluid being generated otherwise
Official title: the pressure fluid being generated otherwise, e.g. by compressing air
F02N9/04 (The pressure fluid being generated otherwise) appears on 59 US grants and 46 published applications in this corpus.
Search patents in F02N- Granted patents
- 59
- Published applications
- 46
- Assignees
- 40
- Inventors
- 134
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 3 |
| 2013 | 0 | 1 |
| 2014 | 4 | 3 |
| 2015 | 1 | 7 |
| 2016 | 3 | 4 |
| 2017 | 6 | 3 |
| 2018 | 3 | 2 |
| 2019 | 4 | 5 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nitrogen compression system for leakage test on gas pipeline used for engine and vessel including the same28 Apr 2026US 12,613,004 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Method of operating a vehicle13 May 2025US 12,297,927 B2GE Aviation Systems LLC
- Method for starting operation of an internal combustion engine21 Mar 2023US 11,608,807 B2Volvo Truck Corporation
- Methods and system for preparing an engine for starting14 Mar 2023US 11,603,818 B1Ford Global Technologies, LLC
- Method of operating a vehicle25 Oct 2022US 11,480,260 B2GE Aviation Systems LLC
- Nitrogen compression system for leakage test on gas pipeline used for engine and vessel including the same22 Aug 2024US 2024/0280221 A1Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Method of operating a vehicle23 Feb 2023US 2023/0056276 A1GE Aviation Systems LLC
- A method for starting operation of an internal combustion engine21 Jul 2022US 2022/0228546 A1Volvo Truck Corporation
- Air feed system for an internal combustion engine23 Jun 2022US 2022/0195913 A1
- Method of operating a vehicle7 Jan 2021US 2021/0003229 A1GE Aviation Systems LLC
Most cited
By later US patents
- Vehicle operating method and system115US 6,223,846 B12001
- Operating a vehicle with braking energy recovery62US 7,231,998 B12007
- Hinge valved rotary engine with separate compression and expansion sections43US 4,860,704 A1989
- Method and apparatus for starting an internal combustion engine32US 5,687,682 ARobert Bosch GmbH · 1997
- Combustion engine having fuel cut-off at idle speed and compressed air starting and method of operation28US 4,741,164 A1988