Patent Assignment
Reel/Frame 027649/0345
Corrective Assignment to Correct the Name of the Assignee Incorrectly Noted as Alberta Oil Sands and Research Authority Previously Recorded on Reel 011049 Frame 0248. Assignor(S) Hereby Confirms the Correct Name of the Assignee as Alberta Oil Sands Technology and Research Authority.
Recorded: 2012-02-03
Pages: 7
Assignors
ZHOU, ZHIHONG
Executed: 2000-08-15
TREMBLAY, BERNARD
Executed: 2000-08-29
WIWCHAR, BRIAN WAYNE
Executed: 2000-08-16
Assignee
ALBERTA OIL SANDS TECHNOLOGY AND RESEARCH AUTHORITY
250 KARL CLARK ROAD, EDMONTON, ALBERTA, T6N 1E4, CANADA
Covered Property
(1)
Controlling Fluid Flow in a Subterranean Formation with a Reinforced Clay Gel
Patent:
6,720,292 →
Application:
09/592,159 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Nunc Pro Tunc Assignment
Feb 16, 2012
From: ALBERTA OIL SANDS TECHNOLOGY AND RESEARCH AUTHORITY
To: ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS
Reel/Frame 027718/0571 →
Assignment of Assignor's Interest
Nov 20, 2013
From: ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS
To: ALBERTA INNOVATES - TECHNOLOGY FUTURES
Reel/Frame 031641/0869 →