Patent Assignment
Reel/Frame 006356/0429
Assignment of Assignors Interest.
Recorded: 1992-10-23
Pages: 6
Assignors
UNDERWOOD, LANCE D.
Executed: 1992-10-21
JOHNSON, HAROLD D.
Executed: 1992-10-21
DEWEY, CHARLES H.
Executed: 1992-10-21
Assignee
SMITH INTERNATIONAL, INC.
16740 HARDY ST., HOUSTON, TEXAS, 77205
Covered Property
(1)
Method and Apparatus for Automatic Closed Loop Drilling System
Patent:
5,332,048 →
Application:
07/965,200 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 9, 1993
From: SMITH INTERNATIONAL, INC.
To: HCS LEASING CORPORATION
Reel/Frame 006452/0317 →
Assignment of Assignor's Interest
Jun 1, 1993
From: HCS LEASING CORPORATION, A WHOLLY OWNED SUBSIDIARY OF SMITH INTERNATIONAL, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006544/0193 →
Security Agreement
Dec 22, 2000
From: PATHFINDER ENERGY SERVICES, INC.
To: WELLS FARGO BANK TEXAS, AS ADMINISTRATIVE AGENT
Reel/Frame 011461/0670 →
Release of Security Interest
Apr 8, 2009
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR BY MERGER TO WELLS FARGO BANK TEXAS, N.A. (AS ADMINISTRATIVE AGENT)
To: PATHFINDER ENERGY SERVICES, INC.
Reel/Frame 022520/0291 →