Henry J. Stevens

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Athens, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making nanocrystalline tungsten powder
- Patent number 7,988,760
- Issue date Aug 2, 2011
- Global Tungsten & Powders Corp.
- Hans-Joachim Lunk
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Ceramic-coated tungsten powder
- Patent number 7,989,064
- Issue date Aug 2, 2011
- Global Tungsten & Powders Corp.
- Hans-Joachim Lunk
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Boron addition for making potassium-doped tungsten
- Patent number 6,478,845
- Issue date Nov 12, 2002
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of making non-sag tungsten wire for electric lamps
- Patent number 6,165,412
- Issue date Dec 26, 2000
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of making non-sag tungsten wire
- Patent number 6,129,890
- Issue date Oct 10, 2000
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Method of Making Nanocrystalline Tungsten Powder
- Publication number 20080223175
- Publication date Sep 18, 2008
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Method for Suppressing the Leachability of Certain Metals
- Publication number 20060198773
- Publication date Sep 7, 2006
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
Ceramic-coated Tungsten Powder
- Publication number 20060199001
- Publication date Sep 7, 2006
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Additives for Suppressing Tungsten Leachability
- Publication number 20060196585
- Publication date Sep 7, 2006
- Osram Sylvania Inc.
- Hans-Joachim Lunk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...