Ingermar S. d'Agrella has been granted 13 US patents while listed as an inventor at Quadtech. The first was granted in 2000 and the most recent in May 2006. Ingermar S. d'Agrella ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Ingermar S. d'Agrella in Sussex, WI, US.