Patent Assignment
Reel/Frame 004362/0237
Assignment of Assignors Interest.
Recorded: 1985-02-04
Pages: 1
Assignor
FREEMAN, EARL R.
Executed: 1983-09-14
Assignee
HUGHES TOOL COMPANY
P.O. BOX 2539, A CORP OF DE, HOUSTON, TEXAS, 77001
Covered Property
(1)
Pneumatic Transfer of Solids into Wells
Patent:
4,512,405 →
Application:
06/584,581 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Feb 4, 1985
From: SWEATMAN, RONALD E.
To: HUGHES TOOL COMPANY
Reel/Frame 004362/0238 →
Assignment of Assignors Interest.
Feb 4, 1985
From: SIMON, JOHN
To: HUGHES TOOL COMPANY
Reel/Frame 004362/0239 →
Assignment of Assignors Interest.
Feb 4, 1985
From: GOTTSCHLING, JOHN
To: HUGHES TOOL COMPANY
Reel/Frame 004362/0240 →
Assignment of Assignors Interest.
Aug 8, 1988
From: HUGHES TOOL COMPANY
To: BAKER HUGHES INCORPORATED
Reel/Frame 005050/0861 →
Assignment of Assignors Interest.
Sep 25, 1991
From: BAKER HUGHES INCORPORATED
To: BJ SERVICES COMPANY
Reel/Frame 005852/0291 →