LexDanaLexDanabeta
Inventor

Alan MacKenzie

Inventor
Aberdeen, GB

Overview

16→
Patents
1997–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 16 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling94%
F26BDrying solid materials or objects by removing liquid therefrom6%
PatentTitleYear
10,830,011Selective downhole actuator20209,482,066'Downhole tool activation'20169,359,866'Downhole tool actuator'20168,973,680'Lockable reamer'20158,905,158'Downhole tool'20148,028,763'Downhole tool'20117,654,332'Apparatus and methods for radially expanding a tubular member'20107,401,650'Apparatus and methods for radially expanding a tubular member'20087,243,722'Expander device'20077,185,701'Apparatus and method for radially expanding a tubular member'20077,073,583'Method and apparatus for expanding tubing downhole'20066,619,398'Cement diverter system for multilateral junctions and method for cementing a junction'20036,561,279'Method and apparatus for completing a wellbore'20036,419,026'Method and apparatus for completing a wellbore'20025,749,419'Completion apparatus and method'19985,689,895'Probe positioning device for a flask freeze drying'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to BAKER HUGHES INC (4)· patent assignee history
2002–2006Based in Milltimber, GB· patent location history
2003–2010Based in Aberdeen, GB· patent location history
2006–2007Patents assigned to E2TECH LTD (2)· patent assignee history
2007Based in Scotland, GB· patent location history
2008–2010Patents assigned to E2 TECH LTD (2)· patent assignee history
2011–2016Based in Catterline, GB· patent location history
2014–2015Patents assigned to MACKENZIE ALAN (2)· patent assignee history
2014–2020Based in Aberdeenshire, GB· patent location history
2015–2020Patents assigned to NOV DOWNHOLE EURASIA LTD (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAKER HUGHES INC41998–2003
NOV DOWNHOLE EURASIA LTD42015–2020
E2 TECH LTD22008–2010
E2TECH LTD22006–2007
MACKENZIE ALANself22014–2015
Locations
LocationPatentsSpan
Aberdeen, GB52003–2010
Aberdeenshire, GB32014–2020
Catterline, GB32011–2016
Milltimber, GB22002–2006
Scotland, GB12007