P

Inventor

ALLWIN ROGER P

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

LINDSEY COMPLETION SYSTEMS INC

5 patents
US5048606ASep 17, 1991

Setting tool for a liner hanger assembly

LINDSEY COMPLETION SYSTEMS INC68 citations95
US4862966ASep 5, 1989

Liner hanger with collapsible ball valve seat

LINDSEY COMPLETION SYSTEMS INC75 citations94
US4828037AMay 9, 1989

Liner hanger with retrievable ball valve seat

LINDSEY COMPLETION SYSTEMS INC75 citations94
US5074362ADec 24, 1991

Finger nut setting tool and liner hanger assembly

LINDSEY COMPLETION SYSTEMS INC28 citations92
US4848462AJul 18, 1989

Rotatable liner hanger

LINDSEY COMPLETION SYSTEMS INC40 citations92

MWL TOOL COMPANY

2 patents
US5181570AJan 26, 1993

Liner hanger assembly

MWL TOOL COMPANY71 citations90
US4681159AJul 21, 1987

Setting tool for a well tool

MWL TOOL COMPANY52 citations86

MWL TOOL AND SUPPLY COMPANY

1 patent
US4601343AJul 22, 1986

PBR with latching system for tubing

MWL TOOL AND SUPPLY COMPANY140 citations96

MWL TOOL & SUPPLY COMPANY

1 patent
US4482014ANov 13, 1984

Barrier tool for polished bore receptacle

MWL TOOL & SUPPLY COMPANY28 citations90

LINDSEY COMPLETION SYSTEMS

1 patent
US4712614ADec 15, 1987

Liner hanger assembly with combination setting tool

LINDSEY COMPLETION SYSTEMS48 citations85