Patent Assignment
Reel/Frame 006362/0800
Assignment of Assignors Interest.
Recorded: 1992-12-01
Pages: 4
Assignors
CAMPBELL, ROY E.
Executed: 1992-11-30
WILKINSON, JOHN D.
Executed: 1992-11-30
HUDSON, HANK M.
Executed: 1992-11-30
Assignee
ELCOR CORPORATION
14643 DALLAS PARKWAY, DALLAS, TEXAS, 75240
Covered Property
(1)
Gas Processing
Patent:
5,275,005 →
Application:
07/983,884 →
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 013542/0806 →
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 019193/0489 →
Change of Name
Apr 20, 2007
From: TORGO, LTD.
To: ORTLOFF ENGINEERS, LTD.
Reel/Frame 019204/0948 →