Hans Bjelkhagen

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Secure photographic method and apparatus
- Patent number 5,972,546
- Issue date Oct 26, 1999
- Photics Corporation
- Hans I. Bjelkhagen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for high resolution holographic imaging of bio...
- Patent number 5,014,709
- Issue date May 14, 1991
- Biologic Systems Corp.
- Hans Bjelkhagen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE