IP Library › Assignment 013555/0479
Patent Assignment
Reel/Frame 013555/0479

Change of Name

Recorded: 2002-12-02 Pages: 2
Assignor
ELCOR CORPORATION
Executed: 2002-09-01
Assignee
ELKCORP
14643 DALLAS PARKWAY, SUITE 1000, DALLAS, TEXAS, 75240-8871
Covered Property (1)
Natural Gas Liquefaction
Patent: 6,742,358 →
Application: 10/161,780 →
Publication: US 2003/0005722
Related Assignments (5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 3, 2002
From: WILKINSON, JOHN D.; HUDSON, HANK M.; CUELLER, KYLET T.
To: ELCOR CORPORATION
Reel/Frame 013252/0254 →
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 019193/0465 →
Assignment of Assignor's Interest Sep 24, 2020
From: ORTLOFF ENGINEERS, LTD.
To: UOP LLC
Reel/Frame 054188/0807 →