Patent Assignment
Reel/Frame 009092/0700
Assignment of Assignor's Interest
Recorded: 1998-03-11
Pages: 3
Assignors
ECKENFELS, JOSEF
Executed: 1997-10-13
HAAS, HERBERT
Executed: 1997-10-13
PRINZ, NORBERT
Executed: 1997-10-13
WARTEL, CHRISTIAN
Executed: 1997-10-13
PFEIFFER, DOMINIQUE
Executed: 1997-10-13
Assignees
GAZ DE FRANCE (G.D.F.) SERVICE NATIONAL
23, RUE PHILIBERT DELORME, PARIS, 75017, FRANCE
POWERDRILL FRANCE
ALLEE DE L'EUROPE, ENTZHEIM, 67960, FRANCE
Covered Property
(1)
Drilling Hole System for Horizontal Boreholes
Patent:
6,050,351 →
Application:
08/922,574 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 11, 1998
From: POWERDRILL FRANCE
To: POWERDRILL GMBH UND CO KG
Reel/Frame 009092/0685 →
Change of Corporate Form
Nov 12, 2012
From: GAZ DE FRANCE SERVICE NATIONAL
To: GAZ DE FRANCE SOCIETE ANONYME
Reel/Frame 029277/0406 →
Change of Name
Nov 12, 2012
From: GAZ DE FRANCE
To: GDF SUEZ
Reel/Frame 029277/0438 →
Change of Address
Nov 12, 2012
From: GDF SUEZ
To: GDF SUEZ
Reel/Frame 029277/0445 →