IP Library › Assignment 032587/0357
Patent Assignment
Reel/Frame 032587/0357

Assignment of Assignor's Interest

Recorded: 2014-04-02 Pages: 4
Assignors
FERGUSON, PATRICK DAVID
Executed: 2014-03-31
MILLER, MARK GERALD
Executed: 2014-03-31
STACHOWIAK, JOHN EDWARD, JR.
Executed: 2014-03-31
Assignee
WEATHERFORD/LAMB, INC.
2000 ST. JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Properties (2)
Barrier for a Downhole Tool
Patent: 9,617,835 →
Application: 14/209,920 →
Publication: US 2014/0262206
An Expandable Seal for a Downhole Tool
Application: 61/792,317 →
Related Assignments (2)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 4, 2014
From: WEATHERFORD/LAMB, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 034526/0272 →
Nunc Pro Tunc Assignment Sep 29, 2015
From: WEATHERFORD/LAMB, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 036709/0793 →