B64G 1/409
Unconventional spacecraft propulsion systems
Official title: {Unconventional spacecraft propulsion systems}
B64G1/409 (Unconventional spacecraft propulsion systems) appears on 74 US grants and 136 published applications in this corpus.
Search patents in B64G- Granted patents
- 74
- Published applications
- 136
- Assignees
- 34
- Inventors
- 211
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 3 |
| 2003 | 0 | 5 |
| 2004 | 2 | 5 |
| 2005 | 3 | 5 |
| 2006 | 1 | 4 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 6 |
| 2012 | 2 | 3 |
| 2013 | 0 | 5 |
| 2014 | 0 | 2 |
| 2015 | 2 | 5 |
| 2016 | 0 | 3 |
| 2017 | 2 | 7 |
| 2018 | 4 | 4 |
| 2019 | 3 | 4 |
| 2020 | 0 | 9 |
| 2021 | 3 | 5 |
| 2022 | 8 | 8 |
| 2023 | 4 | 7 |
| 2024 | 8 | 19 |
| 2025 | 9 | 8 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Near zero-mass change propulsion system for interplanetary and interstellar spacecraft1 Sep 2026US 12,722,807 B2
- Method and apparatus that uses pulsed, counter-rotating plasmas to extract useful energy from the zero-point field and/or to modify or nullify the forces of gravity and inertia, or the properties of mass25 Aug 2026US 12,715,620 B2
- Self propelling system and reaction wheel device11 Aug 2026US 12,706,501 B2
- ThermaSat solar thermal propulsion system26 May 2026US 12,637,236 B2ThermaSat Inc.
- Radioisotope power system for vehicle19 May 2026US 12,633,429 B2Standard Nuclear, Inc.
- Guardian:Anti-Gravity Neutralization G-Force Magnetic Field Propulsion6 Aug 2026US 2026/0225738 A1
- Low earth orbit with electric propulsion16 Jul 2026US 2026/0200603 A1Blue Origin Manufacturing, LLC
- Near zero-mass change propulsion system for interplanetary and interstellar spacecraft25 Jun 2026US 2026/0176001 A1
- Photonic propulsion system18 Jun 2026US 2026/0167359 A1Spar Systems Inc.
- System for the generation of gravitational waves30 Apr 2026US 2026/0117754 A1
Most cited
By later US patents
- Hybrid solar rocket utilizing thermal storage for propulsion and electrical power36US 5,459,996 AThe Babcock & Wilcox Company · 1995
- Spaceship to harness radiations in interstellar flights23US 5,058,833 A1991
- Inertial propulsion device to move an object up and down20US 8,066,226 B22011
- Method and apparatus for propulsion16US 6,089,511 A2000
- Extraterrestrial transportation apparatus and method13US 4,775,120 A1988