IP Library Assignment 022412/0199
Patent Assignment
Reel/Frame 022412/0199

Assignment of Assignor's Interest

Recorded: 2009-03-18 Pages: 4
Assignor
VONGSTAPANALERT, WINYU
Executed: 2009-03-17
Assignee
PRECISION ENERGY SERVICES INC.
500 WINSCOTT ROAD, FORT WORTH, TEXAS, 76126
Covered Properties (2)
Downhole Telemetry Through Multi-Conductor Wireline
Patent: 8,134,477 →
Application: 12/406,236 →
Publication: US 2009/0237267
Mapping Sources of Acoustic Energy Through Multi-Conductor Wirelines
Application: 61/038,130 →
Related Assignments (1)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest May 15, 2018
From: PRECISION ENERGY SERVICES, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 045801/0961 →