Patent Assignment
Reel/Frame 005756/0178
Assignment of Assignors Interest.
Recorded: 1991-07-08
Pages: 3
Assignor
MANDERSCHEID, PHILLIP H.
Executed: 1991-06-26
Assignee
MASX ENERGY SERVICES GROUP, INC. A DELAWARE CORPORATIOIN
HOUSTON, TEXAS
Covered Property
(1)
Well Packing Tool
Patent:
5,046,557 →
Application:
07/516,645 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Nov 29, 1996
From: TOTAL ENERGY SERVICES COMPANY
To: ENTERRA PETROLEUM EQUIPMENT GROUP, INC.
Reel/Frame 008239/0795 →
Assignment of Assignor's Interest
Jan 23, 1997
From: ENTERRA PETROLEUM EQUIPMENT GROUP, INC.
To: EVI ARROW, INC.
Reel/Frame 008321/0001 →
Assignment of Assignor's Interest
Apr 18, 2005
From: WEATHERFORD U.S., L.P.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 015918/0097 →