IP Library Assignment 034216/0548
Patent Assignment
Reel/Frame 034216/0548

Assignment of Assignor's Interest

Recorded: 2014-11-20 Pages: 4
Assignor
METCALFE, PAUL DAVID
Executed: 2013-12-31
Assignee
DARCY TECHNOLOGIES HOLDINGS LIMITED
DARCY HOUSE, KINTORE BUSINESS PARK, KINTORE, ABERDEEN, AB51 0YQ, UNITED KINGDOM
Covered Property (1)
Downhole Apparatus
Application: 14/511,571 →
Publication: US 2015/0068770
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 1, 2017
From: DARCY TECHNOLOGIES HOLDINGS LIMITED
To: HALLIBURTON MANUFACTURING AND SERVICES LIMITED
Reel/Frame 044271/0440 →