Patent Assignment
Reel/Frame 004181/0301
Assignment of Assignors Interest.
Recorded: 1983-10-03
Pages: 1
Assignor
SMITH, JACKIE E.
Executed: 1983-09-26
Assignee
HUGHES TOOL COMPANY, A DE CORP.
P.O. BOX 2539, HOUSTON, TEXAS, 77001
Covered Property
(1)
Method of Connecting Joints of Drill Pipe
Patent:
4,506,432 →
Application:
06/538,648 →
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
May 15, 1984
From: HUGHES TOOL COMPANY
To: HUGHES TOOL COMPANY - USA A CORP OF
Reel/Frame 004269/0060 →
Assignment of Assignors Interest.
Aug 14, 1989
From: HUGHES TOOL COMPANY, - USA, A DE. CORP.
To: BAKER HUGHES, INC., A DE. CORP.
Reel/Frame 005161/0030 →
Assignment of Assignors Interest.
Dec 5, 1990
From: BAKER HUGHES INCORPORATED
To: BH TOOL JOINTS, INC., A CORP. OF TX
Reel/Frame 005570/0504 →
Merger and Change of Name November 02, 1990 Delaware
Jun 20, 1991
From: BH TOOL JOINTS, INC. A CORP. OF TEXAS MERGED WITH AND INTO EVI TJ, INC. A CORP. OF DELAWARE
To: BH TOOL JOINTS, INC. A CORP. OF TEXAS
Reel/Frame 005741/0538 →
Assignment of Assignors Interest.
Jan 17, 1992
From: BH TOOL JOINTS, INC.
To: GRANT TFW, INC.
Reel/Frame 005974/0246 →
Change of Name
Sep 13, 2001
From: GRANT TFW, INC.
To: GRANT PRIDECO, INC.
Reel/Frame 012188/0299 →
Assignment of Assignor's Interest
Sep 25, 2001
From: GRANT PRIDECO, INC.
To: GRANT PRIDECO, L.P.
Reel/Frame 012188/0295 →