Stephan J. Pankratz

Follow

Person

Sofia, BG

People

Patents Grantslast 30 patents

Information Patent Grant
Methods for testing durable optical elements
- Patent number 7,289,202
- Issue date Oct 30, 2007
- 3M Innovative Properties Company
- Michael S. Groess
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Methods for testing durable optical elements
- Publication number 20060055918
- Publication date Mar 16, 2006
- Michael S. Groess
- G01 - MEASURING TESTING