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Wilfried Gutknecht
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Goslar, DE
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Patents Grants
last 30 patents
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Patent Grant
Recovery of molybdenum from molybdenum bearing sulfide materials by...
Patent number
8,268,037
Issue date
Sep 18, 2012
H.C. Starck GmbH
Wolfgang Kummer
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Particular calixarenes method for production and use thereof
Patent number
7,393,969
Issue date
Jul 1, 2008
Bayer Technology Services GmbH
Michael Traving
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for extracting anions
Patent number
6,709,641
Issue date
Mar 23, 2004
H. C. Starck GmbH & Co. KG
Wilfried Gutknecht
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for treating tungstate solutions to reduce molybdenum impur...
Patent number
6,113,868
Issue date
Sep 5, 2000
H. C. Starck GmbH & Co. KG
Wolfgang Mathy
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Cobalt metal agglomerates, process for producing the same and their...
Patent number
6,019,813
Issue date
Feb 1, 2000
H. C. Starck GmbH & Co. KG
Astrid Gorge
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for producing pure ammonium metallates
Patent number
5,891,407
Issue date
Apr 6, 1999
H. C. Starck GmbH & Co. KG
Wilfried Gutknecht
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of pure solutions of tungsten and molybd...
Patent number
5,676,817
Issue date
Oct 14, 1997
H. C. Starck, GmbH and Co. KG.
Wilfried Gutknecht
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
RECOVERY OF MOLYBDENUM FROM MOLYBDENUM BEARING SULFIDE MATERIALS BY...
Publication number
20090320648
Publication date
Dec 31, 2009
H.C. Starck GmbH
Wolfgang Kummer
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Particular Calixarenes Method for Production and Use Thereof
Publication number
20070232826
Publication date
Oct 4, 2007
Bayer Technology Services GmbH
Michael Traving
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...