Patent Assignment
Reel/Frame 006889/0349
Assignment of Assignor's Interest
Recorded: 1994-03-04
Pages: 2
Assignor
PREUSSANG AKTIENGESELLSCHAFT
Executed: 1993-11-10
Assignee
BECFIELD DRILLING SERVICES
10908 METRONOME, HOUSTON, TEXAS, 77043
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 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 →
Change of Name
Oct 15, 2002
From: BECFIELD DRILLING SERVICES GMBH
To: PRECISION DRILLING TECHNOLOGY SERVICES GMBH
Reel/Frame 013386/0303 →