IP Library › Assignment 020654/0179
Patent Assignment
Reel/Frame 020654/0179

Patent Assignment & License Agreement

Recorded: 2008-03-14 Pages: 10
Assignors
SHELL OIL COMPANY
Executed: 2007-08-30
Assignee
AT-BALANCE AMERICAS LLC
11767 KATY FREEWAY, SUITE 1030, HOUSTON, TEXAS, 77079
Covered Property (1)
Dynamic Annular Pressure Control Apparatus and Method
Patent: 6,904,981 →
Application: 10/368,128 →
Publication: US 2003/0196804
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 13, 2003
From: VAN RIET, EGBERT JAN
To: SHELL OIL COMPANY
Reel/Frame 014163/0855 →
Merger Jan 25, 2013
From: AT-BALANCE AMERICAS LLC
To: SMITH INTERNATIONAL, INC.
Reel/Frame 029696/0350 →