F03H 1/0037
Electrostatic ion thrusters
Official title: {Electrostatic ion thrusters}
F03H1/0037 (Electrostatic ion thrusters) appears on 299 US grants and 263 published applications in this corpus.
Search patents in F03H- Granted patents
- 299
- Published applications
- 263
- Assignees
- 155
- Inventors
- 646
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 5 | 4 |
| 2003 | 6 | 6 |
| 2004 | 7 | 2 |
| 2005 | 3 | 5 |
| 2006 | 4 | 12 |
| 2007 | 9 | 4 |
| 2008 | 4 | 5 |
| 2009 | 12 | 7 |
| 2010 | 3 | 9 |
| 2011 | 0 | 8 |
| 2012 | 5 | 10 |
| 2013 | 7 | 6 |
| 2014 | 7 | 9 |
| 2015 | 14 | 6 |
| 2016 | 14 | 13 |
| 2017 | 10 | 10 |
| 2018 | 12 | 13 |
| 2019 | 12 | 11 |
| 2020 | 13 | 17 |
| 2021 | 11 | 19 |
| 2022 | 18 | 16 |
| 2023 | 19 | 26 |
| 2024 | 18 | 18 |
| 2025 | 22 | 17 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-neutralizing air-breathing plasma thruster1 Sep 2026US 12,723,574 B2The George Washington University
- Turbomolecular air-scoop for satellite air-breathing electric propulsion16 Jun 2026US 12,655,813 B2Viridian Space Corporation
- Method of vectoring rocket thrust using an electric field9 Jun 2026US 12,650,114 B2
- Hall-effect thruster system with applied counter-torque9 Jun 2026US 12,650,115 B2The Regents of the University of Michigan
- Targeted-current-density hall thruster14 Apr 2026US 12,601,330 B1The Regents of the University of Michigan
- 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
- Hall thruster state monitoring27 Aug 2026US 2026/0254095 A1The Aerospace Corporation
- Electric propulsion system for space applications20 Aug 2026US 2026/0242070 A1Forchun, LLC
- Hall-effect propulsion device with magnetic compensation20 Aug 2026US 2026/0243238 A1Exotrail
Most cited
By later US patents
- Electrostatic ion thruster with improved thrust modulation86US 4,838,021 AHughes Aircraft Company · 1989
- Spacecraft optimized arc rocket67US 4,577,461 A1986
- Plasma accelerator with closed electron drift61US 5,581,155 ASociete Europeene de Propulsion · 1996
- Spacecraft with modulated thrust electrostatic ion thruster and associated method51US 4,825,646 AHughes Aircraft Company · 1989
- Electrostatic propulsion systems and methods46US 5,947,421 A1999