P

Inventor

LILLEY ROBERT O

GB5 patents
⚠️ This page may combine multiple inventors who share the name “LILLEY ROBERT O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

VETCO GRAY INC

3 patents
US5503230AApr 2, 1996

Concentric tubing hanger

VETCO GRAY INC125 citations95
US4848457AJul 18, 1989

Annulus sliding sleeve valve

VETCO GRAY INC53 citations90
US4771646ASep 20, 1988

Rotating and indexing mechanism

VETCO GRAY INC24 citations75

VETCO GRAY INC ABB

2 patents
US6076605AJun 20, 2000

Horizontal tree block for subsea wellhead and completion method

VETCO GRAY INC ABB130 citations96
US5971077AOct 26, 1999

Insert tree

VETCO GRAY INC ABB153 citations96