Doris C. O'Toole has been granted 15 US patents while listed as an inventor at Emisphere Technologies. The first was granted in 1996 and the most recent in January 2016. Doris C. O'Toole ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Doris C. O'Toole in Carmel, NY, US.