Patent Assignment
Reel/Frame 013542/0705
Change of Name
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:
5,555,748 →
Application:
08/477,444 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 6, 1996
From: CAMPBELL, ROY E.; WILKINSON, JOHN D.; HUDSON, HANK M.; PIERCE, MICHAEL C.
To: ELCOR CORPORATION
Reel/Frame 007906/0671 →
Assignment of Assignor's Interest
Dec 7, 2005
From: ELKCORP
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 016861/0910 →
Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 016861 Frame 0910. Assignor(S) Hereby Confirms the Assignment.
Feb 24, 2006
From: ELKCORP
To: TORGO LTD.
Reel/Frame 017215/0035 →
Change of Name
Apr 13, 2007
From: TORGO, LTD.
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 019193/0499 →
Assignment of Assignor's Interest
Sep 24, 2020
From: ORTLOFF ENGINEERS, LTD.
To: UOP LLC
Reel/Frame 054188/0807 →