IP Library Assignment 023342/0547
Patent Assignment
Reel/Frame 023342/0547

Assignment of Assignor's Interest

Recorded: 2009-10-08 Pages: 6
Assignors
MAULDIN, CHARLES LEE
Executed: 2009-09-28
SCHNEIDER, BARRY VINCENT
Executed: 2009-09-30
SMITH, MARK ADRIAN
Executed: 2009-10-05
Assignee
PRECISION ENERGY SERVICES, INC.
500 WINSCOTT ROAD, FORT WORTH, TEXAS, 76126
Covered Property (1)
Downhole Drilling Vibration Analysis
Patent: 8,255,163 →
Application: 12/570,015 →
Publication: US 2010/0082256
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 →