Patent Assignment
Reel/Frame 004051/0191
Assignment of Assignors Interest.
Recorded: 1982-09-17
Pages: 2
Assignee
HUGHES TOOL COMPANY, A CORP. OF DE.
P.O. BOX 2539, HOUSTON,, TEXAS, 77001
Covered Property
(1)
Water Control Well Treating Solution and Method
Patent:
4,476,931 →
Application:
06/419,294 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.