IP Library › Assignment 007945/0859
Patent Assignment
Reel/Frame 007945/0859

Release of Security Interest

Recorded: 1996-05-17 Pages: 5
Assignor
Assignee
ENERPRO INTERNATIONAL, INC.
531 POLK STREET, BUILDING 7, HOUSTON, TEXAS, 77023
Covered Properties (13)
Novel Identification Card, Sensor, and System
Patent: 4,202,120 →
Application: 05/895,011 →
Apparatus and Method for the Mechanical Sequential Release of Cementing Plugs
Patent: 4,345,651 →
Application: 06/133,363 →
Method for Rethreading Tubular Members
Patent: 4,420,865 →
Application: 06/318,909 →
Unitary Float Valve and Wiping Plug Retainer
Patent: 4,442,894 →
Application: 06/385,615 →
Method and Apparatus for Well Cementing Through a Tubular Member
Patent: 4,450,912 →
Application: 06/385,616 →
Well Conduit Centralizer
Patent: 4,531,582 →
Application: 06/547,408 →
Segmented Concentric Centralizer
Patent: 4,641,776 →
Application: 06/765,798 →
Tubular Couping with Ventable Seal Ventable Seal
Patent: 4,893,844 →
Application: 06/771,137 →
Threaded Connection for Pipes and Method of Fabricating Same
Patent: 4,838,068 →
Application: 07/218,839 →
Subterranean Well Casing Float Tool
Patent: 4,872,510 →
Application: 07/252,043 →
Method and Apparatus for Forming a Ventable Seal
Patent: 5,029,906 →
Application: 07/379,106 →
Subterranean Well Casing Float Tool
Patent: 4,953,622 →
Application: 07/392,906 →
Thread Form
Patent: 5,092,635 →
Application: 07/516,138 →
Related Assignments (25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Jun 7, 1982
From: CALLIHAN, RUDY B.; WAINWRIGHT, CLYDE
To: BAKER OIL TOOLS, INC.
Reel/Frame 004012/0853 →
Assignment of Assignors Interest. Jun 7, 1982
From: CALLIHAN, RUDY B.; STONE, LYNDON R.
To: BAKER OIL TOOLS, INC. 500 CITY PARKWAY, WEST, ORANGE, CA 92668 A CORP. OF CA
Reel/Frame 004006/0894 →
Assignment of Assignors Interest. Oct 4, 1983
From: HAYGOOD, JERRY
To: REED TUBULAR PRODUCTS COMPANY, HOUSTON, TX A TX CORP.
Reel/Frame 004174/0987 →
Assignment of Assignors Interest. Oct 31, 1983
From: MUSE, JOHN F.; RIDDLE, HARRY W.; ZEILER, FRANK S.; BURUATO, JUVENTINO
To: BAKER OIL TOOLS, INC., A CORP OF CA
Reel/Frame 004191/0885 →
Assignment of Assignors Interest. Dec 12, 1988
From: LEHR, DOUGLAS J.; BELL, MERLE L.; RUBBO, RICHARD P.; FOREHAND, RICHARD L.
To: BAKER HUGHES INCORPORATED, A DE CORP.
Reel/Frame 005006/0321 →
Assignment of Assignors Interest. Apr 27, 1990
From: DE LANGE, RICHARD W.; EVANS, MERLE E.; ANDERSON, DONNA S.
To: BAKER HUGHES INCORPORATED
Reel/Frame 005309/0228 →
Change of Name Jul 15, 1993
From: BAKER HUGHES TUBULAR SERVICES, INC.
To: ICO TUBULAR SERVICES, INC.
Reel/Frame 006624/0263 →
Change of Name Jul 15, 1993
From: BAKER OIL TOOLS, INC.
To: BAKER HUGHES PRODUCTION TOOLS, INC.
Reel/Frame 006608/0588 →
Merger Jul 15, 1993
From: BHI SUGAR LAND, INC.
To: BAKER HUGHES TUBULAR SERVICES, INC.
Reel/Frame 006624/0262 →
Change of Name Jul 15, 1993
From: BAKER HUGHES TUBULAR SERVICES, INC.
To: ICO TUBULAR SERVICES, INC.
Reel/Frame 006627/0887 →
Change of Name Jul 15, 1993
From: BAKER INTERNATIONAL CORPORATION
To: BAKER OIL TOOLS, INC.
Reel/Frame 006680/0792 →
Change of Name Jul 15, 1993
From: BAKER OIL TOOLS, INC.
To: BAKER HUGHES PRODUCTION TOOLS, INC.
Reel/Frame 006680/0811 →
Merger Jul 15, 1993
From: BAKER HUGHES PRODUCTION TOOLS, INC.
To: BAKER HUGHES DRILLING TECHNOLOGIES, INC.
Reel/Frame 006680/0830 →
Change of Name Jul 15, 1993
From: BAKER HUGHES PRODUCTION TOOLS, INC.
To: BAKER HUGHES INTEQ, INC.
Reel/Frame 006680/0849 →
Assignment of Assignor's Interest Sep 7, 1993
From: BAKER HUGHES INCORPORATED
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 006727/0808 →
Assignment of Assignor's Interest Sep 7, 1993
From: ICO TUBULAR SERVICES, INC.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 006677/0951 →
Assignment of Assignor's Interest Sep 7, 1993
From: BAKER HUGHES OILFIELD OPERATIONS, INC.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 006680/0567 →
Assignment of Assignor's Interest Sep 14, 1993
From: ENERPRO INTERNATIONAL, INC.
To: FIRST INTERSTATE BANK OF TEXAS, N.A.
Reel/Frame 006705/0467 →
Release of Lien Aug 13, 1996
From: FIRST INTERSTATE BANK OF TEXAS, N.A.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 008077/0049 →
Merger Jan 8, 2001
From: ENERPRO INTERNATIONAL, INC.; EVI ACQUISITION, INC.
To: GRANT PRIDECO, INC.
Reel/Frame 011436/0238 →
Assignment of Assignor's Interest Jan 17, 2001
From: GRANT PRIDECO, INC.
To: GRANT PRIDECO, L.P.
Reel/Frame 011449/0400 →
Grant of Patent Jan 3, 2003
From: GRANT PRIDECO, L.P.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 013333/0021 →
Release of Grant of Patent Security Agreement Jun 1, 2005
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: GRANT PRIDECO, L.P.
Reel/Frame 016079/0694 →
Security Agreement Jun 3, 2005
From: GRANT PRIDECO, L.P.
To: WELLS FARGO BANK
Reel/Frame 016087/0629 →
Release of Patent Security Agreement Sep 18, 2006
From: WELLS FARGO BANK
To: GRANT PRIDECO, L.P.
Reel/Frame 018268/0796 →