B64G 1/404
Hybrid rocket engines
Official title: {Hybrid rocket engines}
B64G1/404 (Hybrid rocket engines) appears on 44 US grants and 43 published applications in this corpus.
Search patents in B64G- Granted patents
- 44
- Published applications
- 43
- Assignees
- 30
- Inventors
- 79
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 1 |
| 2003 | 2 | 4 |
| 2004 | 3 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 3 | 3 |
| 2017 | 0 | 4 |
| 2018 | 0 | 4 |
| 2019 | 4 | 0 |
| 2020 | 2 | 5 |
| 2021 | 2 | 4 |
| 2022 | 5 | 4 |
| 2023 | 3 | 0 |
| 2024 | 9 | 4 |
| 2025 | 4 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thrust vector control for hybrid propellants rocket engine with embedded fluid injection ports22 Sep 2026US 12,742,433 B2Laboratoire Reaction Dynamics Inc.
- Miniaturized green end-burning hybrid propulsion system for cubesats13 Jan 2026US 12,522,381 B2
- Methods for rocket fuel grain coating and unitary manufacture23 Sep 2025US 12,420,339 B1X-Bow Launch Systems Inc.
- Continuous modification in a 3D-printed rocket engine and an additive manufacturing process26 Aug 2025US 12,398,685 B1X-Bow Launch Systems Inc.
- Hybrid propulsion unit for space vehicle29 Apr 2025US 12,286,945 B2Hybrid Propulsion for Space
- Modulating internal ballistics in a 3d-printed rocket motor and an additive manufacturing process8 Oct 2026US 2026/0309106 A1X-Bow Launch Systems Inc.
- 3d-printed rocket fuel grains, rocket engines and an additive manufacturing process30 Apr 2026US 2026/0117725 A1X-Bow Launch Systems Inc.
- Thrust vector control for hybrid propellants rocket engine with embedded fluid injection ports9 Jan 2025US 2025/0012237 A1Laboratoire Reaction Dynamics Inc.
- Satellite launch system28 Nov 2024US 2024/0391611 A1
- Modulating internal ballistics in a 3d-printed rocket motor and an additive manufacturing process11 Apr 2024US 2024/0117782 A1X-Bow Launch Systems Inc.
Most cited
By later US patents
- Systems and methods for casting hybrid rocket motor fuel grains38US 9,429,104 B2The Aerospace Corporation · 2016
- Liquid-solid propulsion system and method32US 5,099,645 AGeneral Dynamics Corporation, Space Systems Division · 1992
- Multiple-propellant air vehicle and propulsion system31US 4,817,890 AGeneral Electric Company · 1989
- Persistent vortex generating high regression rate solid fuel grain for a hybrid rocket engine11US 10,309,346 B22019
- Unitized hybrid rocket system7US 7,540,145 B2Mojave Aerospace Ventures, LLC · 2009