IP Library › Assignment 007370/0596
Patent Assignment
Reel/Frame 007370/0596

Assignment of Assignor's Interest

Recorded: 1995-03-01 Pages: 2
Assignor
LEE, LI-JEIN JOHN
Executed: 1995-03-01
Assignee
M-I DRILLING FLUIDS L.L.C.
5950 NORTH COURSE DRIVE, HOUSTON, TEXAS, 77072
Covered Property (1)
Water-Based Drilling Fluids for Reduction of Water Adsorption and Hydration of Argillaceous Rocks
Patent: 5,635,458 →
Application: 08/397,436 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Aug 14, 1998
From: M-I DRILLING FLUIDS L.L.C., A DELAWARE LIMITED LIABILITY COMPANY
To: M-I L.L.C., A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 009375/0719 →
Assignment of Assignor's Interest Oct 26, 2010
From: M-I HOLDINGS L.L.C.
To: M-I L.L.C.
Reel/Frame 025192/0491 →
Change of Name Oct 26, 2010
From: M-I L.L.C.
To: M-I HOLDINGS L.L.C.
Reel/Frame 025192/0511 →