Patent Assignment
Reel/Frame 017215/0073
Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 016712 Frame 0113. Assignor(S) Hereby Confirms the Assignment.
Recorded: 2006-02-24
Pages: 33
Assignor
ELKCORP
Executed: 2005-11-01
Assignee
TORGO LTD.
WILCO BUILDING, SUITE 2000, 415 WEST WALL STREET, MIDLAND, TEXAS, 79701
Covered Property
(1)
Hydrocarbon Gas Processing
Patent:
4,869,740 →
Application:
07/194,822 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
May 17, 1988
From: CAMPBELL, ROY E.; WILKINSON, JOHN D.; HUDSON, HANK M.
To: ELCOR CORPORATION, A CORP OF TX.
Reel/Frame 004923/0656 →
Change of Name
Dec 2, 2002
From: ELCOR CORPORATION
To: ELKCORP
Reel/Frame 013542/0525 →
Assignment of Assignor's Interest
Nov 1, 2005
From: ELKCORP
To: ORTLOFF ENGINEERS, LTC
Reel/Frame 016712/0113 →
Change of Name
Apr 3, 2007
From: TORGO, LTD.
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 019193/0473 →