IP Library › Assignment 008589/0529
Patent Assignment
Reel/Frame 008589/0529

Assignment of Assignor's Interest

Recorded: 1997-05-23 Pages: 2
Assignor
PATEL, ARVIND
Executed: 1997-05-23
Assignee
M-1 DRILLING FLUIDS, L.L.C.
5950 NORTH COURSE DRIVE, HOUSTON, TEXAS, 77072
Covered Property (1)
Improved Oil-Based Drilling Fluid
Patent: 6,218,342 →
Application: 08/862,201 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 DRILLING FLUIDS L.L.C.
To: M-I L.L.C.
Reel/Frame 025192/0508 →
Change of Name Oct 26, 2010
From: M-I L.L.C.
To: M-I HOLDINGS L.L.C.
Reel/Frame 025192/0511 →