Patent Assignment
Reel/Frame 007906/0671
Assignment of Assignor's Interest
Recorded: 1996-05-06
Pages: 4
Assignors
CAMPBELL, ROY E.
Executed: 1996-04-30
WILKINSON, JOHN D.
Executed: 1996-04-30
HUDSON, HANK M.
Executed: 1996-04-30
PIERCE, MICHAEL C.
Executed: 1996-04-30
Assignee
ELCOR CORPORATION
SUITE 1000, 14643 DALLAS PARKWAY, DALLAS, TEXAS, 75240
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.
Change of Name
Dec 5, 2002
From: ELCOR CORPORATION
To: ELKCORP
Reel/Frame 013542/0705 →
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 →