Robert P. Wenz

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Woodbury, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Frontlit display
- Patent number 6,592,234
- Issue date Jul 15, 2003
- 3M Innovative Properties Company
- Kenneth A. Epstein
- G02 - OPTICS
Information Patent Grant
Liquid crystal device having pressure relief structure
- Patent number 5,699,139
- Issue date Dec 16, 1997
- Minnesota Mining and Manufacturing Company
- David J. W. Aastuen
- G02 - OPTICS
Information Patent Grant
Front-lit liquid crystal display having brightness enhancing film w...
- Patent number 5,608,550
- Issue date Mar 4, 1997
- Minnesota Mining and Manufacturing Company
- Kenneth A. Epstein
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method of applying a thin coating on the lower surface of a bilevel...
- Patent number 5,378,494
- Issue date Jan 3, 1995
- Minnesota Mining and Manufacturing Company
- Patrick A. Thomas
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Frontlit display
- Publication number 20020149925
- Publication date Oct 17, 2002
- Kenneth A. Epstein
- G02 - OPTICS