IP Library › Assignment 015535/0419
Patent Assignment
Reel/Frame 015535/0419

Assignment of Assignor's Interest

Recorded: 2004-06-22 Pages: 2
Assignor
VAN RIET, EGBERT JAN
Executed: 2004-06-08
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, 910 LOUISIANA, HOUSTON, TEXAS, 77252-2463
Covered Property (1)
System for Controlling the Discharge of Drilling Fluid
Patent: 7,134,489 →
Application: 10/489,595 →
Publication: US 2004/0231889
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Patent Assignment and License Agreement Apr 8, 2008
From: SHELL OIL COMPANY; SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
To: AT-BALANCE AMERICAS LLC
Reel/Frame 020762/0971 →
Merger Jan 25, 2013
From: AT-BALANCE AMERICAS LLC
To: SMITH INTERNATIONAL, INC.
Reel/Frame 029696/0350 →