Robert E. Buuck has been granted 4 US patents while listed as an inventor at Io.Tek Co.. The first was granted in 1996 and the most recent in February 2000. Robert E. Buuck ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert E. Buuck in Minnetonka, MN, US.