Piotr Grudzinski has been granted 3 US patents while listed as an inventor at Powerware. The first was granted in 1997 and the most recent in September 2001. Piotr Grudzinski ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Piotr Grudzinski in Toronto, ON, CA.