IP Library Assignment 011498/0443
Patent Assignment
Reel/Frame 011498/0443

Assignment of Assignor's Interest

Recorded: 2001-01-08 Pages: 6
Assignors
THOMEER, HUBERTUS V.
Executed: 2000-09-26
COSTLEY, JAMES MICHAEL
Executed: 2000-09-26
SHEFFIELD, RANDOLPH J.
Executed: 2000-09-26
ESLINGER, DAVID M.
Executed: 2000-09-26
ALLCORN, MARC
Executed: 2000-09-26
OETTLI, MARK C.
Executed: 2000-09-26
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE, MD-1, SUGAR LAND, TEXAS, 77478
Covered Property (1)
Downhole Machining of Well Completion Equipment
Patent: 6,439,313 →
Application: 09/666,724 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 11, 2025
From: PROVENIR INC.
To: PROVENIR GROUP HOLDINGS, LLC
Reel/Frame 072220/0661 →