F02K 9/22
Of the front-burning type
Official title: of the front-burning type
F02K9/22 (Of the front-burning type) appears on 18 US grants and 11 published applications in this corpus.
Search patents in F02K- Granted patents
- 18
- Published applications
- 11
- Assignees
- 16
- Inventors
- 35
- Latest grant
- 20 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extinguishable divert system20 Jun 2023US 11,680,543 B2Valley Tech Systems, Inc.
- Extinguishable divert system12 Oct 2021US 11,143,143 B1Valley Tech Systems, Inc.
- Integral variable performance propellant grain20 Apr 2021US 10,982,625 B2Goodrich Corporation
- End-burning propellant grain with area-enhanced burning surface25 Feb 2020US 10,570,069 B2Aerojet Rocketdyne, Inc.
- Space vehicle with electric propulsion and solid propellant chemical propulsion15 Oct 2019US 10,442,558 B2Herakles
- Rocket solid propellant grain25 Jun 2026US 2026/0176212 A1Siec Badawcza Lukasiewicz - Instytut Lotnictwa
- Extinguishable Divert System30 Dec 2021US 2021/0404418 A1Valley Tech Systems, Inc.
- Integral variable performance propellant grain6 Feb 2020US 2020/0040849 A1Goodrich Corporation
- End-burning propellant grain with area-enhanced burning surface14 Jan 2016US 2016/0009607 A1Aerojet Rocketdyne, Inc.
- Space vehicle with electric propulsion and solid propellant chemical propulsion22 Jan 2015US 2015/0021439 A1Herakles
Most cited
By later US patents
- Constant pressure end burning gas generator26US 4,590,860 AUnited Technologies Corporation · 1986
- Methods of controlling solid propellant ignition, combustion, and extinguishment20US 7,770,380 B22010
- Solid propellant motor7US 4,116,131 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1978
- Propulsion system, opposing grains rocket engine, and method for controlling the burn rate of solid propellant grains6US 8,051,640 B22011
- Insensitive rocket motor6US 8,191,351 B2Raytheon Company · 2012