Inventor
KRISTIANSEN STEFFEN S
NO3 patents
Patents
3 patentsUS7726420B2Jun 1, 2010
Cutter having shaped working surface with varying edge chamfer
SMITH INTERNATIONAL71 citations96
US8037951B2Oct 18, 2011
Cutter having shaped working surface with varying edge chamfer
SMITH INTERNATIONAL37 citations91
US6698538B2Mar 2, 2004
Drill bit having adjustable total flow area
SMITH INTERNATIONAL13 citations83