Barnet D. Ostrow has been granted 9 US patents while listed as an inventor at Learonal. The first was granted in 1986 and the most recent in March 1992. Barnet D. Ostrow ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Barnet D. Ostrow in Roslyn, NY, US.