Patent Assignment
Reel/Frame 020948/0980
Assignment of Assignor's Interest
Recorded: 2008-05-15
Pages: 4
Assignor
TIBBITTS, GORDON A.
Executed: 2005-09-19
Assignee
PARTICLE DRILLING TECHNOLOGIES, INC.
5611 BARID CT, HOUSTON, TEXAS, 77041
Covered Property
(1)
Impact Excavation System And Method With Particle Separation
Application:
12/120,763 →
Publication:
US 2008/0210472
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.