Patent Assignment
Reel/Frame 022513/0567
Assignment of Assignor's Interest
Recorded: 2009-04-07
Received: 2009-04-07
Pages: 3
Assignors
FLAK, RICHARD AUGUST
Executed: 2009-03-23
CRAWFORD, MICHAEL BURL
Executed: 2009-03-24
NUNLEY, PELE JASON
Executed: 2009-03-24
Assignee
ULTERRA DRILLING TECHNOLOGY, L.P.
7601 WILL ROGERS BLVD., FORT WORTH, TX, 76140, UNITED STATES
Covered Property
(1)
Rotary seal arrangement for drill bits
Application:
60/834,864 →