Patent Assignment
Reel/Frame 004454/0462
Assignment of Assignors Interest.
Recorded: 1985-09-09
Pages: 1
Assignor
FULLER, JOHN
Executed: 1985-06-27
Assignee
NL PETROLEUM PRODUCTS LIMITED
STROUD INDUSTRIAL ESTATE, OLDENDS LANE, STONEHOUSE, GLOUCESTERSHIRE, ENGLAND, UNITED KINGDOM
Covered Property
(1)
Rotary Drill Bits
Patent:
4,718,505 →
Application:
06/754,506 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jul 5, 1990
From: NL INDUSTRIES, INC.
To: CAMCO, INCORPORATED, A CORP. OF TX
Reel/Frame 005370/0475 →
Merger
Jul 9, 1990
From: CAMCO, INCORPORATED, A CORP. OF TX.
To: CAMCO INTERNATIONAL INC., A CORP. OF DE
Reel/Frame 005366/0664 →
Merger
Oct 24, 2002
From: CAMCO INTERNATIONAL INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 013417/0342 →
Assignment of Assignor's Interest
Nov 22, 2002
From: SCHLUMBERGER TECHNOLOGY CORPORATION
To: REED HYCALOG OPERATING LP
Reel/Frame 013506/0905 →
Change of Name
Apr 7, 2005
From: REED-HYCALOG OPERATING, L.P.
To: REEDHYCALOG, L.P.
Reel/Frame 016026/0020 →