F03H 1/0075
With an annular channel
Official title: {with an annular channel; Hall-effect thrusters with closed electron drift}
F03H1/0075 (With an annular channel) appears on 112 US grants and 84 published applications in this corpus.
Search patents in F03H- Granted patents
- 112
- Published applications
- 84
- Assignees
- 61
- Inventors
- 242
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 4 |
| 2004 | 4 | 0 |
| 2005 | 1 | 4 |
| 2006 | 3 | 5 |
| 2007 | 4 | 2 |
| 2008 | 3 | 2 |
| 2009 | 6 | 2 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 4 |
| 2014 | 3 | 4 |
| 2015 | 4 | 2 |
| 2016 | 10 | 4 |
| 2017 | 0 | 6 |
| 2018 | 6 | 3 |
| 2019 | 4 | 3 |
| 2020 | 6 | 3 |
| 2021 | 4 | 4 |
| 2022 | 6 | 2 |
| 2023 | 5 | 10 |
| 2024 | 8 | 6 |
| 2025 | 5 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Additively manufactured components for electric propulsion thrusters14 Apr 2026US 12,601,331 B1Board of Trustees of the University of Alabama, for and on behalf of the University of Alabama in Huntsville
- Gas distributor for electric propulsion systems23 Dec 2025US 12,504,006 B2California Institute of Technology
- Electric ion propulsor7 Oct 2025US 12,434,862 B2
- Electric propulsion system for space applications20 Aug 2026US 2026/0242070 A1Forchun, LLC
- Hall-effect propulsion device with magnetic compensation20 Aug 2026US 2026/0243238 A1Exotrail
- Non-linear flux-balanced magnetic circuit for thruster9 Apr 2026US 2026/0098523 A1California Institute of Technology
- Gas distributor for electric propulsion systems20 Nov 2025US 2025/0354541 A1California Institute of Technology
- Electric ion propulsor19 Dec 2024US 2024/0417110 A1
Most cited
By later US patents
- Plasma accelerator with closed electron drift61US 5,581,155 ASociete Europeene de Propulsion · 1996
- Hall effect plasma thruster38US 5,845,880 ASpace Power, Inc. · 1998
- Plasma accelerator of short length with closed electron drift37US 5,475,354 ASociete Europeenne de Propulsion · 1995
- Hall field plasma accelerator with an inner and outer anode33US 6,075,321 ABusek Co., Inc. · 2000
- Plasma accelerator with closed electron drift32US 5,359,258 AFakel Enterprise · 1994