Patent Assignment
Reel/Frame 022932/0137
Assignment of Assignor's Interest
Recorded: 2009-07-09
Pages: 6
Assignors
STEINMAN, DONALD E.
Executed: 2009-06-29
HERTZOG, RUSSEL C.
Executed: 2009-06-29
SMAARDYK, JOHN E.
Executed: 2009-06-29
Assignee
WOOD GROUP LOGGING SERVICES, INC.
19416 PARK ROW, SUITE 100, HOUSTON, TEXAS, 77084
Covered Properties
(2)
Gravel Pack Assessment Tool and Methods of Use
Application:
12/496,163 →
Publication:
US 2010/0017134
Gravel pack assessment tool and methods of use
Application:
61/133,771 →
Related Assignments
(1)
Other recorded transfers of the patents in this record — the chain of ownership.