IP Library › Assignment 018945/0380
Patent Assignment
Reel/Frame 018945/0380

Assignment of Assignor's Interest

Recorded: 2007-03-01 Pages: 4
Assignor
Assignee
WEATHERFORD/LAMB, INC.
515 POST OAK BLVD., SUITE 600, HOUSTON, TEXAS, 77027
Covered Property (1)
Method and Apparatus for Cementing Drill Strings in Place for One Pass Drilling and Completion of Oil and Gas Wells
Patent: 7,228,901 →
Application: 11/292,331 →
Publication: US 2006/0137911
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 27, 2007
From: VAIL, WILLIAM BANNING, III
To: SMART DRILLING AND COMPLETION, INC.
Reel/Frame 019890/0306 →
Assignment of Assignor's Interest Dec 4, 2014
From: WEATHERFORD/LAMB, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 034526/0272 →