Inventor
John R. Beattie
Inventor
Westlake Village, CA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F03Hprimary
F03HProducing a reactive propulsive thrust, not otherwise provided for39%
B64GCosmonautics14%
H01JElectric discharge tubes or discharge lamps11%
C30BSingle-crystal growth7%
F01KSteam engine plants4%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general4%
F02CGas-turbine plants4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
H05HPlasma technique4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
PatentTitleYear
6,964,396'Automatic accel voltage tracking system for an ion thruster'20056,948,305'Method and apparatus for balancing the emission current of neutralizers in ion thruster arrays'20056,619,028'Electric thruster made with surface treatments for improved thermal management'20036,336,318'Ion thruster having a hollow cathode assembly with an encapsulated heater, and its fabrication'20026,318,069'Ion thruster having grids made of oriented pyrolytic graphite'20016,250,070'Ion thruster with ion-extraction grids having compound contour shapes'20015,947,421'Electrostatic propulsion systems and methods'19995,934,965'Apertured nonplanar electrodes and forming methods'19995,924,277'Ion thruster with long-lifetime ion-optics system'19995,152,866'Plasma/radiation assisted molecular beam epitaxy method'19925,048,457'Plasma/radiation assisted molecular beam epitaxy method and apparatus'19914,838,021'Electrostatic ion thruster with improved thrust modulation'19894,733,530'Emission current control system for multiple hollow cathode devices'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1992Patents assigned to HUGHES AIRCRAFT CO (4)· patent assignee history
1988–2005Based in Westlake Village, CA, US· patent location history
1999–2002Patents assigned to HUGHES ELECTRONICS CORP (5)· patent assignee history
2003–2005Patents assigned to BOEING CO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUGHES ELECTRONICS CORP | 5 | 1999–2002 |
| HUGHES AIRCRAFT CO | 4 | 1988–1992 |
| BOEING CO | 3 | 2003–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Westlake Village, California, US | 13 | 1988–2005 |