P

Inventor

HOPWOOD FERGUS

US8 patents
⚠️ This page may combine multiple inventors who share the name “HOPWOOD FERGUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOPWOOD FERGUS

3 patents
US8604639B2Dec 10, 2013

Power limiting control for multiple drilling rig tools

HOPWOOD FERGUS15 citations81
US8136609B2Mar 20, 2012

Multiple input scaling autodriller

HOPWOOD FERGUS11 citations80
US8517692B2Aug 27, 2013

Pressure limiting controller

HOPWOOD FERGUS5 citations71

OMRON OILFIELD & MARINE INC

2 patents
US7775297B2Aug 17, 2010

Multiple input scaling autodriller

OMRON OILFIELD & MARINE INC40 citations90
US7665533B2Feb 23, 2010

Electronic threading control apparatus and method

OMRON OILFIELD & MARINE INC36 citations90

HELMERICH & PAYNE

2 patents
US11466556B2Oct 11, 2022

Stall detection and recovery for mud motors

HELMERICH & PAYNE6 citations80
US12168924B2Dec 17, 2024

Stall detection and recovery for mud motors

HELMERICH & PAYNE1 citations56

WARNER ELECTRIC TECHNOLOGY LLC

1 patent
US7591349B2Sep 22, 2009

Liquid cooled brake assembly

WARNER ELECTRIC TECHNOLOGY LLC14 citations77