IP Library › Assignment 019214/0546
Patent Assignment
Reel/Frame 019214/0546

Assignment of Assignor's Interest

Recorded: 2007-04-23 Pages: 2
Assignors
KRAGT, BEREND-JAN
Executed: 2007-01-26
TJEENK WILLINK, CORNELIS ANTONIE
Executed: 2007-01-26
Assignee
SHELL OIL COMPANY
910 LOUISIANA, INTELLECTUAL PROPERTY, HOUSTON, TEXAS, 77002
Covered Property (1)
Heat Exchanger Vessel with Means for Recirculating Cleaning Particles
Patent: 7,900,691 →
Application: 11/658,523 →
Publication: US 2008/0302511
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 2, 2008
From: SHELL OIL COMPANY
To: TWISTER B.V.
Reel/Frame 021026/0020 →
Assignment of Assignor's Interest Apr 3, 2009
From: KRAGT, BEREND-JAN; TJEENK WILLINK, CORNELIS ANTONIE
To: TWISTER B.V.
Reel/Frame 022504/0854 →