Andrew J. Piepel

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Hudson, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Screens and methods for displaying information
- Patent number 6,870,670
- Issue date Mar 22, 2005
- 3M Innovative Properties Company
- Thomas R. Gehring
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical system with reduced color shift
- Patent number 6,535,333
- Issue date Mar 18, 2003
- 3M Innovative Properties Company
- Andrew J. Piepel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear projection screen with reduced speckle
- Patent number 6,466,368
- Issue date Oct 15, 2002
- 3M Innovative Properties Company
- Andrew J. Piepel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PROJECTION SCREEN
- Publication number 20100245995
- Publication date Sep 30, 2010
- 3M INNOVATIVE PROPERTIES COMPANY
- Michael L. Graetz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Screens and methods for displaying information
- Publication number 20030163367
- Publication date Aug 28, 2003
- 3M Innovative Properties Company
- Andrew J. Piepel
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Temporary screens and methods for displaying information
- Publication number 20020163720
- Publication date Nov 7, 2002
- 3M Innovative Properties Company
- Andrew J. Piepel
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Screens and methods for displaying information
- Publication number 20020163722
- Publication date Nov 7, 2002
- 3M Innovative Properties Company
- Thomas R. Gehring
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY