RH

Richard R. Hofer

Caltech: 7 patents #349 of 4,321Top 9%
NASA: 3 patents #448 of 3,881Top 15%
UN US Navy: 1 patents #406 of 884Top 50%
🗺 California: #60,666 of 386,348 inventorsTop 20%
Overall (All Time): #483,783 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
12345243 Graphite/hexagonal boron nitride bimaterials for electric propulsion Celia S. Chari, Katherine T. Faber, Bryan William McEnerney, James A. Wollmershauser, Edward P. Gorzkowski, III 2025-07-01
10919649 Low-power hall thruster with an internally mounted low-current hollow cathode Ryan W. Conversano, Dan M. Goebel, Ira R. Katz 2021-02-16
10723489 Low-power hall thruster with an internally mounted low-current hollow cathode Ryan W. Conversano, Dan M. Goebel, Ira R. Katz 2020-07-28
10480493 Hall effect thruster electrical configuration Benjamin Alexander Jorns, Ira R. Katz, John R. Brophy 2019-11-19
9874202 Metallic wall hall thrusters Dan M. Goebel, Ioannis G. Mikellides 2018-01-23
9488312 Pulsed plasma lubrication device and method Donald B. Bickler, Saverio A. D'Agostino 2016-11-08
9453502 Metallic wall hall thrusters Dan M. Goebel, Ioannis G. Mikellides 2016-09-27
8407979 Magnetically-conformed, variable area discharge chamber for hall thruster, and method 2013-04-02
8143788 Compact high current rare-earth emitter hollow cathode for hall effect thrusters Dan M. Goebel, Ronnie M. Watkins 2012-03-27
7624566 Magnetic circuit for hall effect plasma accelerator David H. Manzella, David T. Jacobson, Robert S. Jankovsky, Peter Peterson 2009-12-01