Leon B. C. deVos has been granted 3 US patents while listed as an inventor at Spectra-Physics Laserplane. The first was granted in 1991 and the most recent in April 1994. Leon B. C. deVos ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Leon B. C. deVos in Schiedam, OH, NL.