Steven Merlin Twitchell has been granted 9 US patents while listed as an inventor at Amazon. The first was granted in 2014 and the most recent in August 2021. Steven Merlin Twitchell ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Steven Merlin Twitchell in Renton, WA, US.