Patent Assignment
Reel/Frame 006795/0987
Assignment of Assignor's Interest
Recorded: 1993-12-09
Pages: 3
Assignor
STAPLES, TONY P.
Executed: 1993-12-09
Assignee
BAKER HUGHES INCORPORATED
3900 ESSEX LANE, HOUSTON, TEXAS, 77027
Covered Property
(1)
Method of Rock Decontamination
Patent:
5,401,320 →
Application:
08/164,193 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 27, 1995
From: BAKER HUGHES INCORPORATED
To: M-I DRILLING FLUIDS L.L.C.
Reel/Frame 007443/0797 →
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 →