21 Utility and 3 Design Patents
#2 in Bristol, TN
#495 in Tennessee
#78,370 in US
#153,720 in the World
rank by utility patentsForward Citations = 963
Company Filing History:
Kennametal Inc.

Rogers Tool Works, Inc.
4. 2 out of 90
Valenite, Inc.
5. 1 out of 95

where one patent can have more than one assignee
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