Felix Bierbaum

Follow

Person

Hudson, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Light directing expandable envelope
- Patent number 8,789,981
- Issue date Jul 29, 2014
- 3M Innovative Properties Company
- Michael R. Harms
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
LIGHT DIRECTING EXPANDABLE ENVELOPE
- Publication number 20120081908
- Publication date Apr 5, 2012
- Michael R. Harms
- G02 - OPTICS