P

Inventor

CLEGG JOHN M

GB10 patents
⚠️ This page may combine multiple inventors who share the name “CLEGG JOHN M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CAMCO DRILLING GROUP LTD

5 patents
US5803185ASep 8, 1998

Steerable rotary drilling systems and method of operating such systems

CAMCO DRILLING GROUP LTD277 citations98
US5244039ASep 14, 1993

Rotary drill bits

CAMCO DRILLING GROUP LTD164 citations98
US5186268AFeb 16, 1993

Rotary drill bits

CAMCO DRILLING GROUP LTD237 citations98
US5163524ANov 17, 1992

Rotary drill bits

CAMCO DRILLING GROUP LTD69 citations95
US5671818ASep 30, 1997

Rotary drill bits

CAMCO DRILLING GROUP LTD25 citations92

CAMCO INT UK LTD

2 patents
US6089332AJul 18, 2000

Steerable rotary drilling systems

CAMCO INT UK LTD279 citations98
US6089336AJul 18, 2000

Rotary drill bits

CAMCO INT UK LTD47 citations88

CAMCO DRILLING GROUP LTD OF HY

1 patent
US5685379ANov 11, 1997

Method of operating a steerable rotary drilling system

CAMCO DRILLING GROUP LTD OF HY249 citations97

REED TOOL CO

1 patent
US5119892AJun 9, 1992

Notary drill bits

REED TOOL CO151 citations96

CAMCO INT

1 patent
US5819860AOct 13, 1998

Rotary drill bits

CAMCO INT11 citations73