Company Badge
USPTO Data Jan 1 1976 - Jan 6 2026
1 Patents
#604 in Pittsburgh, PA
#4,868 in Pennsylvania
#133,943 in US
Kopper Company, Inc.
Forward Citations = 10
4 inventors:
Pittsburgh, PA, United States of America
Kopper Company, Inc.
Forward Citations = 10
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4 inventors (with patents filed for the assignee):
James P Colton (1 out of 16 patents)
John D Carlson (1 out of 17 patents)
Edward W Kifer (1 out of 6 patents)
4. Vincent J Wojtyna (1 out of 3 patents)
1 patent:
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