Pelfrey; Philip C
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pelfrey; Philip C.The latest application filed is for "dual-expander short-length aerospike engine".
- Pelfrey; Philip C - Jupiter FL US
- Pelfrey; Philip C. - Adelanto CA
- Pelfrey; Philip C. - Jupiter FL US
- Pelfrey; Philip C. - Boca Raton FL
| Patent | Date |
|---|---|
| Monopropellant cascade rocket engine Grant 10,731,605 - Demski , et al. | 2020-08-04 |
| Dual-expander Short-length Aerospike Engine App 20190003423 - Pelfrey; Philip C. | 2019-01-03 |
| Centrifugal impeller for a rocket engine having high and low pressure outlets Grant 8,613,189 - Pelfrey , et al. December 24, 2 | 2013-12-24 |
| Turbopump with a tapered hydrostatic bearing Grant 8,596,960 - Pelfrey December 3, 2 | 2013-12-03 |
| Card seal for a turbomachine Grant 8,333,544 - Pelfrey December 18, 2 | 2012-12-18 |
| Hydrodynamic liquid metal bearing Grant 7,896,550 - Pinera , et al. March 1, 2 | 2011-03-01 |
| Expander cycle rocket engine nozzle App 20100326043 - Pelfrey; Philip C. | 2010-12-30 |
| Dual spool shaft with intershaft seal Grant 7,544,039 - Pelfrey June 9, 2 | 2009-06-09 |
| Stepped labyrinth seal Grant 7,445,213 - Pelfrey November 4, 2 | 2008-11-04 |
| High temperature damper for a roller bearing Grant 7,431,504 - Pelfrey October 7, 2 | 2008-10-07 |
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