Peter S. Guilfoyle has been granted 13 US patents while listed as an inventor at Opticomp. The first was granted in 1987 and the most recent in August 2010. Peter S. Guilfoyle ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Peter S. Guilfoyle in Sunnyvale, CA, US.