IP Library › Assignment 020746/0321
Patent Assignment
Reel/Frame 020746/0321

Assignment of Assignor's Interest

Recorded: 2008-04-02 Pages: 5
Assignor
GREAVES, KEITH HOWARTH
Executed: 2008-04-02
Assignee
TERRATEK, INC.
1935 SOUTH FREMONT DRIVE, SALT LAKE CITY, UTAH, 84104
Covered Property (1)
Modeling the Transient Behavior of Bha/Drill String While Drilling
Patent: 8,014,987 →
Application: 12/061,252 →
Publication: US 2008/0255817
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 2, 2008
From: PABON, JAHIR; WICKS, NATHAN; CHANG, YONG; CHAPMAN, CLINTON
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 020792/0265 →
Corrective Assignment to Correct the Entire Assignment Previously Recorded on Reel 020746 Frame 0321. Assignor(S) Hereby Confirms the Assignment. Apr 7, 2008
From: PABON, JAHIR; WICKS, NATHAN; CHANG, YONG; CHAPMAN, CLINTON
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 020767/0547 →