IP Library Assignment 024117/0633
Patent Assignment
Reel/Frame 024117/0633

Assignment of Assignor's Interest

Recorded: 2010-03-22 Pages: 5
Assignors
MCELHINNEY, GRAHAM A.
Executed: 2010-03-16
ILLFELDER, HERBERT M.J.
Executed: 2010-03-09
Assignee
SMITH INTERNATIONAL, INC.
1310 RANKIN RD., HOUSTON, TEXAS, 77073
Covered Property (1)
Relative and Absolute Error Models for Subterranean Wells
Application: 12/725,578 →
Publication: US 2010/0241410
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →