F02K 9/425
Propellants
Official title: {Propellants}
F02K9/425 (Propellants) appears on 80 US grants and 96 published applications in this corpus.
Search patents in F02K- Granted patents
- 80
- Published applications
- 96
- Assignees
- 69
- Inventors
- 204
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 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 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 2 | 4 |
| 2005 | 3 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 5 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 1 | 5 |
| 2016 | 1 | 11 |
| 2017 | 1 | 10 |
| 2018 | 3 | 10 |
| 2019 | 7 | 3 |
| 2020 | 6 | 3 |
| 2021 | 6 | 3 |
| 2022 | 4 | 5 |
| 2023 | 7 | 13 |
| 2024 | 13 | 6 |
| 2025 | 8 | 4 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalytic decomposition reactors28 Jul 2026US 12,692,824 B2Firehawk Aerospace, Inc.
- Methods and systems for propellant reconditioning for short-duration thrusters burns9 Jun 2026US 12,650,100 B1Blue Origin Manufacturing, LLC
- Refrigeration method using an artificial neural network14 Apr 2026US 12,600,499 B2Arianegroup SAS
- Warm gas thruster system with control valve that has a soft seal14 Apr 2026US 12,601,312 B2Aerojet Rocketdyne, Inc.
- Ignition and operation of liquid fuel powered rocket engine3 Feb 2026US 12,540,590 B2Venus Aerospace Corp.
- Reusable Launch Vehicle with Auxiliary Propellant Tanks for Non-Ascent Burns2 Jul 2026US 2026/0184441 A1Blue Origin, LLC
- Reusable Launch Vehicle with Auxiliary Propellant Tanks for Non-Ascent Burns2 Jul 2026US 2026/0184442 A1Blue Origin, LLC
- Systems and methods for rotating detonation combustion satellite thrusters18 Jun 2026US 2026/0168464 A1Juno Propulsion Inc.
- Ignition and operation of liquid fuel powered rocket engine30 Apr 2026US 2026/0117727 A1Venus Aerospace Corp.
- Method, apparatus and composition for propulsion grade hydrogen peroxide heavy in-organic stabilization use in rotating detonating rocket engines & long-term storage in propellant management systems12 Mar 2026US 2026/0071594 A1Venus Aerospace Corp.
Most cited
By later US patents
- System, method and apparatus for lean combustion with plasma from an electrical arc107US 8,074,439 B2Foret Plasma Labs, LLC · 2011
- System, method and apparatus for lean combustion with plasma from an electrical arc29US 8,833,054 B2Foret Plasma Labs, LLC · 2014
- Safe propulsion system for missile divert thrusters and attitude control thrusters and method for use of same24US 5,533,331 AKaiser Marquardt, Inc. · 1996
- Liquid propellant rocket motor15US 6,895,743 B12005
- Monopropellant combustion system13US 6,931,832 B2United Technologies Corporation · 2005