Patent Assignment
Reel/Frame 021004/0422
Articles/Certificate of Correction
Recorded: 2008-05-27
Pages: 9
Assignor
PRODRIL ACQUISITION COMPANY
Executed: 2003-06-09
Assignee
PRODRIL ACQUISITION COMPANY, INC.
808 TRAVIS STREET, SUITE #850, HOUSTON, TEXAS, 77002
Covered Property
(1)
Impact Excavation System and Method with Injection System
Related Assignments
(9)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 8, 2008
From: HARDER, NATHAN J.; PADGETT, PAUL O.
To: PARTICLE DRILLING TECHNOLOGIES, INC.
Reel/Frame 020921/0347 →
Change of Name
May 27, 2008
From: MEDXLINK CORP
To: PARTICLE DRILLING TECHNOLOGIES, INC.
Reel/Frame 021002/0353 →
Merger
May 27, 2008
From: PDTI ACQUISITION CORP
To: PARTICLE DRILLING TECHNOLOGIES, INC.
Reel/Frame 021002/0866 →
Merger
May 27, 2008
From: PARTICLE DRILLING, INC.
To: PARTICLE DRILLING TECHNOLOGIES, INC.
Reel/Frame 021002/0934 →
Articles of Amendment
May 27, 2008
From: PRODRIL ACQUISITION COMPANY, INC.
To: PARTICLE DRILLING, INC.
Reel/Frame 021004/0368 →
Assignment of Assignor's Interest
May 27, 2008
From: CURLETT, HARRY B.; SHARP, DAVID P.; GREGORY, MARVIN A.
To: CURLETT FAMILY LIMITED PARTNERSHIP
Reel/Frame 021004/0478 →
Assignment and Assumption Agreement
May 27, 2008
From: CURLETT FAMILY LIMITED PARTNERSHIP LTD.
To: PRODRIL ACQUISITION COMPANY
Reel/Frame 021004/0525 →
Merger
May 27, 2008
From: PARTICLE DRILLING TECHNOLOGIES, INC.
To: MEDXLINK CORP
Reel/Frame 021039/0522 →
Assignment of Assignor's Interest
Oct 9, 2009
From: PARTICLE DRILLING TECHNOLOGIES, INC.
To: PDTI HOLDINGS, LLC
Reel/Frame 023348/0522 →