Edward E. Freyenhagen has been granted 4 US patents while listed as an inventor at Markem. The first was granted in 1995 and the most recent in January 2019. Edward E. Freyenhagen ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Edward E. Freyenhagen in Meredith, NH, US.