F01B 17/025
Using liquid air
Official title: {using liquid air}
F01B17/025 (Using liquid air) appears on 27 US grants and 25 published applications in this corpus.
Search patents in F01B- Granted patents
- 27
- Published applications
- 25
- Assignees
- 17
- Inventors
- 37
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 5 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 0 |
| 2014 | 3 | 3 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 3 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Compressed-air engine with integrated active chamber and active distribution with balanced valve8 Jul 2025US 12,352,171 B2Motor Development International S.A.
- Pressure controlled hydraulic engine11 May 2021US 11,002,296 B2
- Systems and methods for running an air compressor using a permanent magnet generator2 Feb 2021US 10,907,627 B2Illinois Tool Works Inc.
- Apparatus and methods for controlling reciprocating internal combustion engines21 Jul 2020US 10,718,211 B2ROLLS-ROYCE plc
- Apparatus and methods for controlling reciprocating internal combustion engines16 Jun 2020US 10,683,754 B2ROLLS-ROYCE plc
- Compressed-air engine with integrated active chamber and active distribution with balanced valve21 Dec 2023US 2023/0407747 A1Motor Development International S.A.
- External compression engine21 Apr 2022US 2022/0120184 A1
- Compressed gas engine29 Jul 2021US 2021/0231111 A1US Air Technology, Inc.
- Pressure controlled hydraulic engine16 Jul 2020US 2020/0224535 A1
- Systems and methods for running an air compressor using a permanent magnet generator2 May 2019US 2019/0128253 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Split-cycle aircraft engine19US 7,513,224 B2Scuderi Group, LLC · 2009
- Engine system using liquid air and combustible fuel14US 4,359,118 AR & D Associates · 1982
- Vehicle utilizing cryogenic fuel12US 4,106,581 A1978
- Method for operating a pollution-reducing engine11US 6,311,486 B12001
- Engine system using liquid air and combustible fuel9US 4,226,294 AR & D Associates · 1980