Inventor
GOEBEL DAN M
US28 patents
⚠️ This page may combine multiple inventors who share the name “GOEBEL DAN M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUGHES AIRCRAFT CO
13 patentsUS5607509AMar 4, 1997
High impedance plasma ion implantation apparatus
HUGHES AIRCRAFT CO73 citations96
US5537005AJul 16, 1996
High-current, low-pressure plasma-cathode electron gun
HUGHES AIRCRAFT CO79 citations96
US5330800AJul 19, 1994
High impedance plasma ion implantation method and apparatus
HUGHES AIRCRAFT CO51 citations96
US5296272AMar 22, 1994
Method of implanting ions from a plasma into an object
HUGHES AIRCRAFT CO53 citations96
US5668442ASep 16, 1997
Plasma-assisted tube with helical slow-wave structure
HUGHES AIRCRAFT CO29 citations92
US5608297AMar 4, 1997
Plasma switch and switching method with fault current interruption
HUGHES AIRCRAFT CO23 citations92
US5218179AJun 8, 1993
Plasma source arrangement for ion implantation
HUGHES AIRCRAFT CO29 citations92
US5212425AMay 18, 1993
Ion implantation and surface processing method and apparatus
HUGHES AIRCRAFT CO43 citations92
US5132597AJul 21, 1992
Hollow cathode plasma switch with magnetic field
HUGHES AIRCRAFT CO40 citations91
US5329205AJul 12, 1994
High voltage crossed-field plasma switch
HUGHES AIRCRAFT CO29 citations90
US5694005ADec 2, 1997
Plasma-and-magnetic field-assisted, high-power microwave source and method
HUGHES AIRCRAFT CO11 citations74
US5663694ASep 2, 1997
Triggered-plasma microwave switch and method
HUGHES AIRCRAFT CO8 citations72
US5336975AAug 9, 1994
Crossed-field plasma switch with high current density axially corrogated cathode
HUGHES AIRCRAFT CO18 citations71
CALIFORNIA INST OF TECHN
6 patentsUS10919649B2Feb 16, 2021
Low-power hall thruster with an internally mounted low-current hollow cathode
CALIFORNIA INST OF TECHN4 citations71
US10723489B2Jul 28, 2020
Low-power hall thruster with an internally mounted low-current hollow cathode
CALIFORNIA INST OF TECHN5 citations71
US12078153B2Sep 3, 2024
Thermally managed electric propulsion systems
CALIFORNIA INST OF TECHN1 citations59
US11482395B2Oct 25, 2022
Heaterless hollow cathode
CALIFORNIA INST OF TECHN1 citations55
US12334310B2Jun 17, 2025
High current heaterless hollow cathode
CALIFORNIA INST OF TECHN0 citations53
US12504006B2Dec 23, 2025
Gas distributor for electric propulsion systems
CALIFORNIA INST OF TECHN0 citations50
HUGHES ELECTRONICS CORP
5 patentsUS5828176AOct 27, 1998
Planar crossed-field plasma switch and method
HUGHES ELECTRONICS CORP36 citations92
US6094009AJul 25, 2000
High efficiency collector for traveling wave tubes with high perveance beams using focusing lens effects
HUGHES ELECTRONICS CORP19 citations84
US5942852AAug 24, 1999
Efficient, highly linear traveling wave tube using collector with high backstreaming current under saturated drive
HUGHES ELECTRONICS CORP16 citations67
US5932971AAug 3, 1999
Optimally designed traveling wave tube for operation backed off from saturation
HUGHES ELECTRONICS CORP3 citations60
US6324041B1Nov 27, 2001
Protection circuit for traveling wave tubes having multiple input tones
HUGHES ELECTRONICS CORP3 citations57