IP Library › Assignment 023660/0029
Patent Assignment
Reel/Frame 023660/0029

Assignment of Assignor's Interest

Recorded: 2009-12-16 Pages: 11
Assignor
SHELL OIL COMPANY
Executed: 2009-10-12
Assignee
THRUBIT B.V.
LANGE KLEIWEG 60F, RIJSWIJK ZH, 2288GK, NETHERLANDS
Covered Property (1)
Well Drilling Bit
Patent: 7,140,454 →
Application: 10/482,890 →
Publication: US 2004/0238224
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 21, 2004
From: RUNIA, DOUWE JOHANNES
To: SHELL OIL COMPANY
Reel/Frame 015600/0975 →
Assignment of Assignor's Interest Oct 4, 2012
From: THRUBIT B.V.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029072/0908 →