Robert D. DeMaster

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Afton, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Multicolor imaging using multiphoton photochemical processes
- Patent number 7,026,103
- Issue date Apr 11, 2006
- 3M Innovative Properties Company
- Robert J. DeVoe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tape cassette for cleaning VCR heads and transport components
- Patent number 6,256,166
- Issue date Jul 3, 2001
- 3M Innovative Porperties Company
- Robert D. DeMaster
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette for cleaning VCR heads and transport components
- Patent number 5,841,613
- Issue date Nov 24, 1998
- Minnesota Mining and Manufacturing Company
- Robert D. DeMaster
- G11 - INFORMATION STORAGE
Information Patent Grant
Low-profile raised retroreflective pavement marker
- Patent number 4,035,059
- Issue date Jul 12, 1977
- Minnesota Mining and Manufacturing Company
- Robert D. DeMaster
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Multiphoton absorption method using patterned light
- Publication number 20040012872
- Publication date Jan 22, 2004
- Patrick R Fleming
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Multicolor imaging using multiphoton photochemical processes
- Publication number 20030194651
- Publication date Oct 16, 2003
- Robert J. De Voe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY