Patent Assignment
Reel/Frame 025134/0243
Assignment of Assignor's Interest
Recorded: 2010-10-13
Pages: 5
Assignor
MUMMA, MATTHEW D.
Executed: 2010-09-14
Assignee
ULTERRA DRILLING TECHNOLOGIES, LP
420 THROCKMORTON STREET, SUITE 1110, FORT WORTH, TEXAS, 76102
Covered Property
(1)
Active Gauge Protection for Drill Bits
Application:
12/251,955 →
Publication:
US 2010/0089662
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.