Donald K. Murphy

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Placentia, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tuned resonant oscillating mass inflation pump and method of extrac...
- Patent number 5,941,692
- Issue date Aug 24, 1999
- Hughes Electronics Corporation
- Ross D. Olney
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electrical generator system having a tuned resonant oscillating mass
- Patent number 5,934,882
- Issue date Aug 10, 1999
- Hughes Electronics Corporation
- Ross D. Olney
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Tuned resonant oscillating mass inflation pump and method of extrac...
- Patent number 5,707,215
- Issue date Jan 13, 1998
- Hughes Aircraft Company
- Ross D. Olney
- B60 - VEHICLES IN GENERAL