B64G 1/411
Electric propulsion
Official title: {Electric propulsion}
B64G1/411 (Electric propulsion) appears on 552 US grants and 580 published applications in this corpus.
Search patents in B64G- Granted patents
- 552
- Published applications
- 580
- Assignees
- 222
- Inventors
- 1,141
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 1 |
| 2002 | 9 | 4 |
| 2003 | 10 | 13 |
| 2004 | 5 | 9 |
| 2005 | 7 | 7 |
| 2006 | 5 | 17 |
| 2007 | 7 | 16 |
| 2008 | 6 | 12 |
| 2009 | 9 | 14 |
| 2010 | 8 | 9 |
| 2011 | 4 | 10 |
| 2012 | 5 | 11 |
| 2013 | 8 | 9 |
| 2014 | 7 | 18 |
| 2015 | 18 | 24 |
| 2016 | 29 | 35 |
| 2017 | 22 | 36 |
| 2018 | 37 | 41 |
| 2019 | 39 | 27 |
| 2020 | 33 | 42 |
| 2021 | 31 | 46 |
| 2022 | 32 | 43 |
| 2023 | 37 | 36 |
| 2024 | 42 | 40 |
| 2025 | 47 | 24 |
| 2026 | 18 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Contained gas recirculation system for a vehicle22 Sep 2026US 12,741,758 B2Belen Aerospace Corporation
- Near zero-mass change propulsion system for interplanetary and interstellar spacecraft1 Sep 2026US 12,722,807 B2
- Systems, apparatus, and methods for momentum management for a spacecraft25 Aug 2026US 12,715,618 B2The Boeing Company
- Spacecraft-borne propulsion device with gas heating and gas storage18 Aug 2026US 12,709,412 B2Tohoku University
- Pulsed-plasma-discharge engine and its method of operation18 Aug 2026US 12,710,021 B2Sharp Pulse Corp.
- Use of a new type of propellant for electric propulsion8 Oct 2026US 2026/0307826 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Drone systems and methods17 Sep 2026US 2026/0274409 A1Duplicent, LLC
- Electric thruster with protective coating on thermionic emitter10 Sep 2026US 2026/0264890 A1Aerojet Rocketdyne, Inc.
- Electric thruster with hexaboride emitter10 Sep 2026US 2026/0266270 A1Aerojet Rocketdyne, Inc.
- System and method for real-time machine learning control of plasma osciallations in hall thrusters3 Sep 2026US 2026/0258793 A1Georgia Tech Research Corporation
Most cited
By later US patents
- Resonant power supply for an arcjet thruster118US 5,414,238 AMartin Marietta Corporation · 1995
- System, method and apparatus for lean combustion with plasma from an electrical arc107US 8,074,439 B2Foret Plasma Labs, LLC · 2011
- Multiple usage thruster mounting configuration91US 6,032,904 ASpace Systems/Loral, Inc. · 2000
- Power supply system for arcjet thrusters70US 5,359,180 AGeneral Electric Company · 1994
- Spacecraft optimized arc rocket67US 4,577,461 A1986