Patent Assignment
Reel/Frame 013411/0900
Assignment of Assignor's Interest
Recorded: 2002-08-11
Pages: 3
Assignor
ESTES, ROY D.
Executed: 2002-07-30
Assignee
ROCK BIT INTERNATIONAL, L.P.
P.O. BOX 40540, FT. WORTH, TEXAS, 76410
Covered Property
(1)
Adjustable Earth Boring Device
Patent:
6,745,858 →
Application:
10/209,832 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Agreement
Jul 14, 2005
From: ROCKBIT INTERNATIONAL, L.P., A TEXAS LIMITED PARTNERSHIP; PDC-GEARHART INTERNATIONAL, INC., A TEXAS CORPORATION; NO-DRIFT TECH SYSTEMS, L.P., A TEXAS LIMITED PARTNERSHIP
To: PNC BANK, N.A., A NATIONAL BANKING ASSOCIATION
Reel/Frame 016263/0203 →
Assignment of Assignor's Interest
Feb 28, 2008
From: ULTERRA DRILLING TECHNOLOGIES, L.P.
To: GENERAL ELECTRIC CAPITAL CORPORATION
Reel/Frame 020571/0601 →
Assignment of Assignor's Interest
Feb 16, 2011
From: ULTERRA DRILLING TECHNOLOGIES, L.P.
To: BURINTEKH USA LLC
Reel/Frame 025822/0903 →
Release of Security Interest
Jun 13, 2011
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: ULTERRA DRILLING TECHNOLOGIES, L.P.; ULTERRA, LP
Reel/Frame 026430/0658 →