F02B 55/12
By air or other gas
Official title: by air or other gas
F02B55/12 (By air or other gas) appears on 10 US grants and 10 published applications in this corpus.
Search patents in F02B- Granted patents
- 10
- Published applications
- 10
- Assignees
- 7
- Inventors
- 14
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 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 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method of hydrogen fuel injection14 Jan 2025US 12,196,162 B1Astron Aerospace LLC
- Rotary engine, parts thereof, and methods10 Dec 2024US 12,163,461 B2Astron Aerospace LLC
- Rotary engine, parts thereof, and methods12 Jul 2022US 11,384,684 B2Astron Aerospace LLC
- Rotary engine, parts thereof, and methods24 Nov 2020US 10,844,782 B1Astron Aerospace LLC
- Device for internal cooling and pressurization of rotary engine28 Nov 2017US 9,828,908 B2National Chung Shan Institute of Science and Technology
- Rotational engine18 Sep 2025US 2025/0290419 A1Duplicent, LLC
- Rotary engine, parts thereof, and methods5 Jun 2025US 2025/0179956 A1Astron Aerospace LLC
- Rotary engine, parts thereof, and methods23 Mar 2023US 2023/0092617 A1Astron Aerospace LLC
- Rotary piston engine having optimized internal cooling of intake air4 Aug 2022US 2022/0243645 A1
- Rotary engine, parts thereof, and methods11 Feb 2021US 2021/0040885 A1Astron Aerospace LLC
Most cited
By later US patents
- Charged cooled rotary engine9US 6,325,603 B1Moller International, Inc. · 2001
- Rotary engine, parts thereof, and methods4US 10,844,782 B1Astron Aerospace LLC · 2020
- Rotary engine having enhanced charge cooling and lubrication4US 6,164,942 AMoller International, Inc. · 2000
- Rotary engine, parts thereof, and methods3US 11,384,684 B2Astron Aerospace LLC · 2022
- Rotary internal combustion engines3US 4,000,721 ABirmingham Small Arms Company Limited · 1977