Darrell Lee Laffoon has been granted 2 US patents while listed as an inventor at Ezshield. The first was granted in 2014 and the most recent in May 2017. Darrell Lee Laffoon ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Darrell Lee Laffoon in Bel Air, MD, US.