David J. Murphy

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Vadnais Heights, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-component unidirectional graphic article
- Patent number 6,872,435
- Issue date Mar 29, 2005
- 3M Innovative Properties Company
- Sally J. Bull
- B44 - DECORATIVE ARTS
Information Patent Grant
Retroreflective luminescent articles
- Patent number 6,656,566
- Issue date Dec 2, 2003
- 3M Innovative Properties Company
- C. Richard Kuykendall
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Multi-component unidirectional graphic article
- Publication number 20010006714
- Publication date Jul 5, 2001
- Sally J. Bull
- B44 - DECORATIVE ARTS