Inventor
Richard R. Hofer
Inventor
Monrovia, CA, US
Overview
Patents· 8 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 for37%
B64GCosmonautics26%
H05HPlasma technique16%
C10MLubricating compositions5%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions5%
F16NLubricating5%
H01JElectric discharge tubes or discharge lamps5%
PatentTitleYear
10,723,489Low-power hall thruster with an internally mounted low-current hollow cathode202010,480,493Hall effect thruster electrical configuration20199,874,202Metallic wall hall thrusters20189,488,312'Pulsed plasma lubrication device and method'20169,453,502'Metallic wall hall thrusters'20168,407,979'Magnetically-conformed, variable area discharge chamber for hall thruster, and method'20138,143,788'Compact high current rare-earth emitter hollow cathode for hall effect thrusters'20127,624,566'Magnetic circuit for hall effect plasma accelerator'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009Based in Ypsilanti, MI, US· patent location history
2012–2020Patents assigned to CALIFORNIA INST OF TECHN (5)· patent assignee history
2012–2013Patents assigned to HOFER RICHARD R (2)· patent assignee history
2012Patents assigned to GOEBEL DAN M (1)· patent assignee history
2012–2019Based in Monrovia, CA, US· patent location history
2013–2016Patents assigned to NASA (2)· patent assignee history
2016Patents assigned to GOEBEL DAN MICHAEL (1)· patent assignee history
2020Based in Pasadena, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CALIFORNIA INST OF TECHN | 5 | 2012–2020 |
| HOFER RICHARD Rself | 2 | 2012–2013 |
| NASA | 2 | 2013–2016 |
| GOEBEL DAN M | 1 | 2012 |
| GOEBEL DAN MICHAEL | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Monrovia, California, US | 6 | 2012–2019 |
| Pasadena, California, US | 1 | 2020 |
| Ypsilanti, MI, US | 1 | 2009 |