IP Library › Assignment 022737/0283
Patent Assignment
Reel/Frame 022737/0283

Assignment of Assignor's Interest

Recorded: 2009-05-27 Pages: 4
Assignors
STENERSON, KENNETH
Executed: 2006-06-24
CEH, LEON
Executed: 2006-06-23
MCELHINNEY, GRAHAM
Executed: 2006-06-23
Assignee
PATHFINDER ENERGY SERVICES, INC.
15151 SOMMERMEYER ST., HOUSTON, TEXAS, 77041
Covered Properties (2)
Method for Magnetizing Casing String Tubulars
Patent: 7,679,480 →
Application: 12/422,347 →
Publication: US 2009/0195340
Magnetized Casing String Tubulars
Patent: 7,679,481 →
Application: 12/422,355 →
Publication: US 2009/0195339
Related Assignments (2)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest May 27, 2009
From: PATHFINDER ENERGY SERVICES, INC.
To: SMITH INTERNATIONAL, INC.
Reel/Frame 022737/0357 →
Assignment of Assignor's Interest Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →