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Herbert Stephan
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Bruchkobel, DE
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last 30 patents
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Patent Grant
Melting furnace for producing strand-cast ingots in a protective ga...
Patent number
4,821,791
Issue date
Apr 18, 1989
Leybold Aktiengesellschaft
Hans Aichert
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process and device for melting and remelting metals in particle for...
Patent number
4,730,661
Issue date
Mar 15, 1988
Leybold Heraeus GmbH
Herbert Stephan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Apparatus for the production of high-purity metal powder by means o...
Patent number
4,295,808
Issue date
Oct 20, 1981
Leybold-Heraeus GmbH & Co. KG
Herbert Stephan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Coupling for stationary and movable vacuum chambers
Patent number
4,258,645
Issue date
Mar 31, 1981
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method and apparatus for vacuum depositing thin coatings using elec...
Patent number
4,238,525
Issue date
Dec 9, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of vaporizing alloys of metals having different vapor pressures
Patent number
4,237,148
Issue date
Dec 2, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Instrument for determining the radiation parameters of a focused ch...
Patent number
4,233,515
Issue date
Nov 11, 1980
Leybold-Heraeus GmbH
Walter Dietrich
G01 - MEASURING TESTING
Information
Patent Grant
Method for vapor-coating turbine buckets
Patent number
4,233,342
Issue date
Nov 11, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of evaporating melts of alloys of metals having different va...
Patent number
4,230,739
Issue date
Oct 28, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Heating system for vacuum coating apparatus
Patent number
4,226,587
Issue date
Oct 7, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for the production of high-purity metal powder by means of e...
Patent number
4,218,410
Issue date
Aug 19, 1980
Leybold-Heraeus GmbH & Co. KG
Herbert Stephan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of coating metal substrates with alloys at elevated substrat...
Patent number
4,214,015
Issue date
Jul 22, 1980
Leybold-Heraeus GmbH
Herbert Stephan
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Evaporating crucible
Patent number
4,208,042
Issue date
Jun 17, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Vacuum coating apparatus
Patent number
4,192,253
Issue date
Mar 11, 1980
Leybold-Hereaus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Vacuum coating apparatus having a plurality of lock chambers
Patent number
4,184,448
Issue date
Jan 22, 1980
Leybold-Heraeus GmbH
Hans Aichert
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...