IP Library › Assignment 019890/0306
Patent Assignment
Reel/Frame 019890/0306

Assignment of Assignor's Interest

Recorded: 2007-09-27 Pages: 2
Assignor
VAIL, WILLIAM BANNING, III
Executed: 2003-02-14
Assignee
SMART DRILLING AND COMPLETION, INC.
3123 - 198TH PLACE S.E., BOTHELL, WASHINGTON, 98012
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 Mar 1, 2007
From: SMART DRILLING AND COMPLETION, INC.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 018945/0380 →
Assignment of Assignor's Interest Dec 4, 2014
From: WEATHERFORD/LAMB, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 034526/0272 →