10 Utility and 2 Design Patents
#11 in Ashland, KY
#888 in Kentucky
#200,119 in US
#406,495 in the World
rank by utility patentsForward Citations = 97
Company Filing History:
Portec Rail Products, Inc.
Koppers Delaware, Inc.
Other
4. 1 out of 1
Protec Rail Products, Inc.
5. 1 out of 4
Portec - Rmp Division
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