IP Library › Assignment 029322/0474
Patent Assignment
Reel/Frame 029322/0474

Assignment of Assignor's Interest

Recorded: 2012-11-19 Pages: 3
Assignors
SMITH, COLIN
Executed: 2012-10-30
PURKIS, DANIEL GEORGE
Executed: 2012-11-12
Assignee
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD INDUSTRIAL ESTATE, DYCE, ABERDEEN, ABERDEENSHIRE, AB21 0BF, UNITED KINGDOM
Covered Property (1)
Downhole Actuating Apparatus
Patent: 8,701,776 →
Application: 13/627,705 →
Publication: US 2013/0025868
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 9, 2017
From: PETROWELL, LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043506/0292 →
Assignment of Assignor's Interest Aug 30, 2017
From: PETROWELL LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043722/0898 →