Michael A. Essien

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Woodbury, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Retroreflective articles having multilayer films and methods of man...
- Patent number 6,677,028
- Issue date Jan 13, 2004
- 3M Innovative Properties Company
- James E. Lasch
- G02 - OPTICS
Information Patent Grant
Pillowed flexible cube-corner sheeting and methods of manufacture
- Patent number 5,930,040
- Issue date Jul 27, 1999
- 3M Innovative Properties Company
- Jeffrey D. Janovec
- G02 - OPTICS