Inventor

ALHAUG ESPEN

NO10 patents

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

ALHAUG ESPEN

4 patents

US8770628B2Jul 8, 2014

Seal assembly for nested dual drill pipe

ALHAUG ESPEN5 citations68

US9169715B2Oct 27, 2015

Down hole well tool provided with a piston

ALHAUG ESPEN0 citations37

US9267344B2Feb 23, 2016

Actuator for dual drill string valve and drill string valve configurations therefore

ALHAUG ESPEN0 citations33

US8997871B2Apr 7, 2015

Actuator for dual drill string valve and rotary drill string valve configuration therefor

ALHAUG ESPEN0 citations33

REELWELL A S

2 patents

US11236551B2Feb 1, 2022

Wired pipe and method for making

REELWELL A S3 citations67

US11525531B2Dec 13, 2022

Seal and insulator for pipe having an insulated electrical conductor

REELWELL A S0 citations48

REELWELL AS

2 patents

US12312873B2May 27, 2025

Wired pipe and method for making

REELWELL AS0 citations46

US12366122B2Jul 22, 2025

Well completion pipe having fluid isolated conductive path

REELWELL AS0 citations39

SYSE HARALD

1 patent

US8777273B2Jul 15, 2014

Structure for a nested dual drill pipe joint

SYSE HARALD7 citations80

HOGSET TORE

1 patent

US8833489B2Sep 16, 2014

Method and system for transferring signals through a drill pipe system

HOGSET TORE5 citations58