Suzanne E. Schaefer has been granted 14 US patents while listed as an inventor at American Can. The first was granted in 1983 and the most recent in November 2016. Suzanne E. Schaefer ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Suzanne E. Schaefer in Appleton, WI, US.