Patent Assignment
Reel/Frame 020042/0465
Assignment of Assignor's Interest
Recorded: 2007-10-31
Pages: 3
Assignors
BURROWS, JAMES W.
Executed: 2003-01-09
BRUNE, GUENTER W.
Executed: 2003-01-07
MERCER, JOHN E.
Executed: 2003-01-07
Assignee
DIGITAL CONTROL INCORPORATED
425 SW 41ST STREET, RENTON, WASHINGTON, 98005
Covered Property
(1)
Boring Tool Tracking Fundamentally Based on Drill String Length, Pitch and Roll
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.