Inventor

OLLERENSHAW ANDREW

GB7 patents

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

RUSSELL MARK ALEXANDER

2 patents

US7004266B2Feb 28, 2006

Adjustable downhole tool

RUSSELL MARK ALEXANDER16 citations79

US7128170B1Oct 31, 2006

Adjustable stabiliser for directional drilling

RUSSELL MARK ALEXANDER4 citations57

INTELLIGENT DRILLING TOOLS LTD

2 patents

US10370907B2Aug 6, 2019

Disconnect and other devices for downhole assembly

INTELLIGENT DRILLING TOOLS LTD4 citations65

US10648261B2May 12, 2020

Circulation subassembly

INTELLIGENT DRILLING TOOLS LTD0 citations31

(unassigned)

1 patent

US6708785B1Mar 23, 2004

Fluid controlled adjustable down-hole tool

69 citations91

TOOLBOX DRILLING SOLUTIONS LTD

1 patent

US7252163B2Aug 7, 2007

Downhole under-reamer tool

TOOLBOX DRILLING SOLUTIONS LTD47 citations89

BOART UK LTD

1 patent

US4925320AMay 15, 1990

Feed beam arrangement for a rockdrill

BOART UK LTD30 citations81