Stephen E. de Laszlo has been granted 11 US patents while listed as an inventor at Merck. The first was granted in 1993 and the most recent in June 2003. Stephen E. de Laszlo ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Stephen E. de Laszlo in Atlantic Highlands, NJ, US.