Patent Assignment
Reel/Frame 013386/0303
Change of Name
Recorded: 2002-10-15
Pages: 8
Assignor
BECFIELD DRILLING SERVICES GMBH
Executed: 2001-11-29
Assignee
PRECISION DRILLING TECHNOLOGY SERVICES GMBH
EDDESSER STRASSE 1, D-31234 EDEMISSEN, GERMANY
Covered Property
(1)
Well Bore Data Transmission Apparatus
Patent:
5,182,731 →
Application:
07/889,888 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
May 29, 1992
From: HOELSCHER, HANS-JURGEN; KERK, THOMAS; TUENNERMANN, WILFRIED; WINNACKER, HELMUT
To: PREUSSAG AKTIENGESELLSCHAFT
Reel/Frame 006150/0155 →
Assignment of Assignor's Interest
Mar 4, 1994
From: PREUSSANG AKTIENGESELLSCHAFT
To: BECFIELD DRILLING SERVICES
Reel/Frame 006889/0349 →
Assignment of Assignor's Interest
Mar 18, 1994
From: PREUSSAG AKTIENGESELLSCHAFT, A GERMAN CORPORATION
To: BECFIELD DRILLING SERVICES
Reel/Frame 006900/0231 →
Security Agreement
Nov 7, 1997
From: PHOENIX DRILLING SERVICES, INC., A DELAWARE CORPORATION
To: GENERAL ELECTRIC CAPITAL CORPORATION, A NEW YORK CORPORATION
Reel/Frame 008811/0883 →
Termination of Security Interest in Patents
Mar 30, 1998
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: PHOENIX DRILLING SERVICES, INC.
Reel/Frame 009052/0022 →
Assignment of Assignor's Interest
May 21, 1999
From: BECFIELD DRILLNG SERVICES
To: BECFIELD DRILLIG SERVICES GMBH
Reel/Frame 009968/0282 →