Patent Assignment
Reel/Frame 013542/0766
Assignment of Assignor's Interest
Recorded: 2002-12-05
Pages: 2
Assignor
ELCOR CORPORATION
Executed: 2002-09-01
Assignee
ELKCORP
14643 DALLAS PARKWAY, SUITE 1000, DALLAS, TEXAS, 75240-8871
Covered Property
(1)
Hydrocarbon Gas Processing
Patent:
5,799,507 →
Application:
08/738,321 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 17, 1997
From: WILKINSON, JOHN D.; HUDSON, HANK M.; CUELLAR, KYLE T.
To: ELCOR CORPORATION
Reel/Frame 008310/0787 →
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 →
Corrective Assignment to Correct the Serial No. and Patent No. Previously Recorded on Reel 019193 Frame 0481. Assignor(S) Hereby Confirms the Serial No. Should Read 0873821 and Patent No. Should Read 5799507.
Sep 24, 2007
From: HUDSON, HANK M.; WILKINSON, JOHN D.; CUELLAR, KYLE T.
To: ORTLOFF ENGINEERS, LTD
Reel/Frame 019864/0323 →
Assignment of Assignor's Interest
Sep 24, 2020
From: ORTLOFF ENGINEERS, LTD.
To: UOP LLC
Reel/Frame 054188/0807 →