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Inventor

HINES CRAIG D

US5 patents
⚠️ This page may combine multiple inventors who share the name “HINES CRAIG D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OTIS ENG CO

3 patents
US4834183AMay 30, 1989

Surface controlled subsurface safety valve

OTIS ENG CO66 citations94
US4842074AJun 27, 1989

Gas storage well safety system and method

OTIS ENG CO28 citations89
US5137089AAug 11, 1992

Streamlined flapper valve

OTIS ENG CO19 citations81

HALLIBURTON CO

2 patents
US5323859AJun 28, 1994

Streamlined flapper valve

HALLIBURTON CO38 citations92
US5318127AJun 7, 1994

Surface controlled annulus safety system for well bores

HALLIBURTON CO23 citations91