Inventor
KAR NARESH J
US6 patents
Patents
6 patentsUS4944774AJul 31, 1990
Hard facing for milled tooth rock bits
SMITH INTERNATIONAL60 citations94
US4836307AJun 6, 1989
Hard facing for milled tooth rock bits
SMITH INTERNATIONAL99 citations94
US4781770ANov 1, 1988
Process for laser hardfacing drill bit cones having hard cutter inserts
SMITH INTERNATIONAL90 citations94
US4907665AMar 13, 1990
Cast steel rock bit cutter cones having metallurgically bonded cutter inserts
SMITH INTERNATIONAL79 citations93
US5485890AJan 23, 1996
Rock bit
SMITH INTERNATIONAL27 citations92
US4869329ASep 26, 1989
Rock bit insert
SMITH INTERNATIONAL39 citations92