Michael J. Petrich

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Lake Elmo, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Protective overlay bearing a graphic and retroreflective articles c...
- Patent number 8,506,095
- Issue date Aug 13, 2013
- 3M Innovative Properties Company
- Chester A. Bacon
- G02 - OPTICS
Information Patent Grant
Toner developed electrostatic imaging process for outdoor signs
- Patent number 5,262,259
- Issue date Nov 16, 1993
- Minnesota Mining and Manufacturing Company
- Hsin-hsin Chou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transfer apparatus and method
- Patent number 5,114,520
- Issue date May 19, 1992
- Minnesota Mining and Manufacturing Company
- Paul J. Wang
- B44 - DECORATIVE ARTS

Patents Applicationslast 30 patents

Information Patent Application
PROTECTIVE OVERLAY BEARING A GRAPHIC AND RETROREFLECTIVE ARTICLES C...
- Publication number 20110228391
- Publication date Sep 22, 2011
- Chester A. Bacon, JR.
- G02 - OPTICS