Harald Ries

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Villigen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Nonimaging optical illumination system
- Patent number 6,019,485
- Issue date Feb 1, 2000
- Minnesota Mining & Mfg. Co.
- Roland Winston
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Nonimaging optical illumination system
- Patent number 5,816,693
- Issue date Oct 6, 1998
- Minnesota Mining and Manufacturing Company
- Roland Winston
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Nonimaging optical illumination system
- Patent number 5,586,013
- Issue date Dec 17, 1996
- Minnesota Mining and Manufacturing Company
- Roland Winston
- F24 - HEATING RANGES VENTILATING