Inventor
BEATTIE JOHN R
US12 patents
⚠️ This page may combine multiple inventors who share the name “BEATTIE JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUGHES ELECTRONICS CORP
5 patentsUS5924277AJul 20, 1999
Ion thruster with long-lifetime ion-optics system
HUGHES ELECTRONICS CORP78 citations96
US6336318B1Jan 8, 2002
Ion thruster having a hollow cathode assembly with an encapsulated heater, and its fabrication
HUGHES ELECTRONICS CORP60 citations92
US6318069B1Nov 20, 2001
Ion thruster having grids made of oriented pyrolytic graphite
HUGHES ELECTRONICS CORP36 citations89
US6250070B1Jun 26, 2001
Ion thruster with ion-extraction grids having compound contour shapes
HUGHES ELECTRONICS CORP43 citations89
US5934965AAug 10, 1999
Apertured nonplanar electrodes and forming methods
HUGHES ELECTRONICS CORP7 citations73
HUGHES AIRCRAFT CO
4 patentsUS4838021AJun 13, 1989
Electrostatic ion thruster with improved thrust modulation
HUGHES AIRCRAFT CO134 citations97
US4733530AMar 29, 1988
Emission current control system for multiple hollow cathode devices
HUGHES AIRCRAFT CO28 citations91
US5152866AOct 6, 1992
Plasma/radiation assisted molecular beam epitaxy method
HUGHES AIRCRAFT CO3 citations61
US5048457ASep 17, 1991
Plasma/radiation assisted molecular beam epitaxy method and apparatus
HUGHES AIRCRAFT CO3 citations61