Inventor
WALTER JAMES C
US6 patents
⚠️ This page may combine multiple inventors who share the name “WALTER JAMES C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CAMCO INT
3 patentsUS4991671AFeb 12, 1991
Means for mounting a roller cutter on a drill bit
CAMCO INT69 citations94
US5080183AJan 14, 1992
Seal assembly for roller cutter drill bit having a pressure balanced lubrication system
CAMCO INT48 citations91
US5676214AOct 14, 1997
Flow channels for tooth type rolling cutter drill bits
CAMCO INT18 citations82