Irmgard Gergely has been granted 31 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in July 2011. Irmgard Gergely ranks #115,823 of 4,157,543 US inventors in our database (top 2.8%). Patent records list Irmgard Gergely in Gleisdorf, AT.