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Hans J. Hagemann
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Aachen, DE
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last 30 patents
Information
Patent Grant
Method of manufacturing optical fibres
Patent number
5,188,648
Issue date
Feb 23, 1993
U.S. Philips Corp.
Peter E. E. Geittner
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing optical fibres
Patent number
5,145,509
Issue date
Sep 8, 1992
U.S. Philips Corp.
Peter K. Bachmann
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing optical fibres
Patent number
5,133,794
Issue date
Jul 28, 1992
U.S. Philips Corp.
Peter K. Bachmann
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing a monomode optical fiber
Patent number
5,106,402
Issue date
Apr 21, 1992
U.S. Philips Corp.
Peter E. E. Geittner
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing optical fibres
Patent number
4,871,383
Issue date
Oct 3, 1989
U.S. Philips Corp.
Peter K. Bachmann
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing a dielectric
Patent number
4,477,401
Issue date
Oct 16, 1984
U.S. Philips Corporation
Hans J. Hagemann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of producing a dielectric having a perowskite structure
Patent number
4,260,663
Issue date
Apr 7, 1981
U.S. Philips Corporation
Hans J. Hagemann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES