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Inventor

IVIE CRAIG R

US4 patents
⚠️ This page may combine multiple inventors who share the name “IVIE CRAIG R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CAMCO INT

3 patents
US5096005AMar 17, 1992

Hydraulic action for rotary drill bits

CAMCO INT37 citations90
US5029656AJul 9, 1991

Nozzle means for rotary drill bits

CAMCO INT24 citations90
US4989680AFeb 5, 1991

Drill bit having improved hydraulic action for directing drilling fluid

CAMCO INT37 citations90

REED TOOL CO

1 patent
US4940099AJul 10, 1990

Cutting elements for roller cutter drill bits

REED TOOL CO113 citations94