Donald R. Ross Jr.

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Trolley rail
- Patent number 4,550,231
- Issue date Oct 29, 1985
- U-S Safety Trolley Corp.
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electric power transmission system
- Patent number 4,400,592
- Issue date Aug 23, 1983
- U-S Safety Trolley Corporation
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Trolley rail section
- Patent number 4,258,835
- Issue date Mar 31, 1981
- U-S Safety Trolley Corporation
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Trolley rail and flying pickup
- Patent number 4,194,603
- Issue date Mar 25, 1980
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Trolley rail
- Patent number 4,090,594
- Issue date May 23, 1978
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Trolley rail assembly
- Patent number 4,084,301
- Issue date Apr 18, 1978
- U-S Safety Trolley Corporation
- Donald R. Ross
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Trolley rail assembly
- Patent number 4,050,555
- Issue date Sep 27, 1977
- U-S Safety Trolley Corporation
- Donald R. Ross
- B60 - VEHICLES IN GENERAL