Richard D. Roberts

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South Park Township, Allegheny County, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Motor control chopper apparatus phase angle limiting
- Patent number 4,516,059
- Issue date May 7, 1985
- Westinghouse Electric Corp.
- Richard D. Roberts
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle propulsion control apparatus and method
- Patent number 4,392,091
- Issue date Jul 5, 1983
- Westinghouse Electric Corp.
- Richard D. Roberts
- B60 - VEHICLES IN GENERAL