Patent Assignment
Reel/Frame 023494/0216
Assignment of Assignor's Interest
Recorded: 2009-11-10
Pages: 5
Assignee
RENELCO ENERGY INC.
1338 R 36TH AVENUE N.E., CALGARY, ALBERTA, T2E 6T6, CANADA
Covered Property
(1)
Method for Terminating or Reducing Water Flow in a Subterranean Formation
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 11, 2012
From: RENELCO ENERGY INC.
To: TERVITA CORPORATION
Reel/Frame 028198/0159 →
Grant of Security Interest in Patents
Feb 14, 2013
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 029817/0826 →
Amended and Restated Grant of Security Interest in Patents
Dec 19, 2016
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 041032/0175 →