4 Utility Patents
#27 in Natrona Heights, PA
#18,205 in Pennsylvania
#481,089 in US
Forward Citations = 55
Company Filing History:
Koppers Delaware, Inc.
Koppers Industries of Delaware, Inc.
Koppers Industries, Inc.
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#27 in Natrona Heights, PA
#18,205 in Pennsylvania
#481,089 in US
Company Filing History:
Get your Inventor Badge Today