Michael Kauffmann has been granted 3 US patents while listed as an inventor at BOE. The first was granted in 2007 and the most recent in June 2011. Michael Kauffmann ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Michael Kauffmann in Goethestadt Bad Lauchstädt, PA, DE.