Inventor
SHIRK STEVEN D
US6 patents
Patents
6 patentsUS5007685AApr 16, 1991
Trenching tool assembly with dual indexing capability
KENNAMETAL INC173 citations98
US4998574AMar 12, 1991
Cutting bit and block mount
KENNAMETAL INC67 citations95
US5184925AFeb 9, 1993
Insert and insert support bar
KENNAMETAL INC26 citations91
US5226489AJul 13, 1993
Insert spacer assembly
KENNAMETAL INC16 citations80
US4917196AApr 17, 1990
Excavating tooth for an earth auger
KENNAMETAL INC18 citations73
US5310015AMay 10, 1994
Insert spacer assembly
KENNAMETAL INC3 citations61