P

Inventor

SHEPPARD MICHAEL C

GB4 patents
⚠️ This page may combine multiple inventors who share the name “SHEPPARD MICHAEL C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHLUMBERGER TECHNOLOGY CORP

3 patents
US6405798B1Jun 18, 2002

Downhole tool and method

SCHLUMBERGER TECHNOLOGY CORP158 citations97
US6845819B2Jan 25, 2005

Down hole tool and method

SCHLUMBERGER TECHNOLOGY CORP61 citations94
US6446718B1Sep 10, 2002

Down hole tool and method

SCHLUMBERGER TECHNOLOGY CORP70 citations94

ANADRILL INC

1 patent
US4760735AAug 2, 1988

Method and apparatus for investigating drag and torque loss in the drilling process

ANADRILL INC84 citations92