Jean Berchtold

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La Jolla, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Alumina glass composition and magnetic head incorporating same
- Patent number 4,544,974
- Issue date Oct 1, 1985
- Eastman Kodak Company
- Bradford D. West
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for preparing hot-pressed sintered alloys
- Patent number 4,101,348
- Issue date Jul 18, 1978
- Spin Physics
- Jean Berchtold
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Material for magnetic transducer heads
- Patent number 3,999,216
- Issue date Dec 21, 1976
- Eastman Kodak Company
- Jean Berchtold
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process of manufacturing ferrite bodies of low porosity
- Patent number 3,989,794
- Issue date Nov 2, 1976
- Eastman Kodak Company
- Jean Berchtold
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process of manufacturing ferrite materials with improved magnetic a...
- Patent number 3,948,785
- Issue date Apr 6, 1976
- Jean Berchtold
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES