IP Library Assignment 028662/0240
Patent Assignment
Reel/Frame 028662/0240

Assignment of Assignor's Interest

Recorded: 2012-07-27 Pages: 5
Assignors
MAULDIN, CHARLES L.
Executed: 2009-09-28
SCHNEIDER, BARRY V.
Executed: 2009-09-30
SMITH, MARK A.
Executed: 2009-10-05
Assignee
PRECISION ENERGY SERVICES, INC.
500 WINSCOTT ROAD, FORT WORTH, TEXAS, 76126
Covered Property (1)
Downhole Drilling Vibration Analysis
Patent: 8,417,456 →
Application: 13/560,843 →
Publication: US 2012/0290209
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 28, 2018
From: PRECISION ENERGY SERVICES, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 045062/0618 →