15 Utility Patents
#388 in Pittsburgh, PA
#4,222 in Pennsylvania
#123,863 in US
#247,650 in the World
Forward Citations = 327
Company Filing History:

Westinghouse Electric Corporation
Caterpillar Paving Products Inc.
4. 1 out of 3,381

5. 1 out of 645

where one patent can have more than one assignee
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