Patent Assignment
Reel/Frame 015376/0454
Assignment of Assignor's Interest
Recorded: 2004-11-15
Pages: 5
Assignors
WILKINSON, JOHN D.
Executed: 2002-08-15
HUDSON, HANK
Executed: 2002-08-15
CUELLER, KYLE T.
Executed: 2002-08-19
Assignee
ELKCORP
14911 OUOROM DRIVE, SUITE 600, DALLAS, TEXAS, 75254
Covered Property
(1)
Natural Gas Liquefaction
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 13, 2004
From: ELCOR CORPORATION
To: ELKCORP
Reel/Frame 015262/0606 →
Assignment of Assignor's Interest
Nov 1, 2005
From: ELKCORP
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 016712/0220 →
Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 016712 Frame 0220. Assignor(S) Hereby Confirms the Assignment.
Feb 24, 2006
From: ELKCORP
To: TORGO LTD.
Reel/Frame 017215/0131 →
Change of Name
Apr 13, 2007
From: TORGO, LTD.
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 019193/0465 →