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Inventor

HOOKER II JOHN D

US9 patents
⚠️ This page may combine multiple inventors who share the name “HOOKER II JOHN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WEATHERFORD TECH HOLDINGS LLC

4 patents
US10697256B2Jun 30, 2020

Electronic control system for a tubular handling tool

WEATHERFORD TECH HOLDINGS LLC4 citations83
US10253581B2Apr 9, 2019

Electronic control system for a tubular handling tool

WEATHERFORD TECH HOLDINGS LLC2 citations72
US11085253B2Aug 10, 2021

Tong assembly with door position sensors

WEATHERFORD TECH HOLDINGS LLC0 citations60
US10801277B2Oct 13, 2020

Electronic control system for a tubular handling tool

WEATHERFORD TECH HOLDINGS LLC0 citations51

WEATHERFORD LAMB

2 patents
US8365834B2Feb 5, 2013

Tubular handling apparatus

WEATHERFORD LAMB46 citations95
US8752636B2Jun 17, 2014

Tubular handling apparatus

WEATHERFORD LAMB4 citations81

OLSTAD DELANEY MICHAEL

1 patent
US8141642B2Mar 27, 2012

Fill up and circulation tool and mudsaver valve

OLSTAD DELANEY MICHAEL43 citations92

WIEDECKE MICHAEL

1 patent
US9404322B2Aug 2, 2016

Electronic control system for a tubular handling tool

WIEDECKE MICHAEL19 citations89

PIETRAS BERND-GEORG

1 patent
US8215687B2Jul 10, 2012

Remotely operated single joint elevator

PIETRAS BERND-GEORG11 citations83