IP Library › Assignment 022098/0433
Patent Assignment
Reel/Frame 022098/0433

Assignment of Assignor's Interest

Recorded: 2009-01-13 Pages: 3
Assignors
HAN, WEI
Executed: 2008-11-19
WANG, TSILI
Executed: 2008-11-25
Assignee
PATHFINDER ENERGY SERVICES, INC.
15151 SOMMERMEYER ST., HOUSTON, TEXAS, 77041
Covered Property (1)
Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements
Patent: 8,117,907 →
Application: 12/339,229 →
Publication: US 2010/0154531
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 10, 2009
From: PATHFINDER ENERGY SERVICES, INC.
To: SMITH INTERNATIONAL, INC.
Reel/Frame 022231/0733 →
Assignment of Assignor's Interest Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →