Dwayne Litzenberger has been granted 9 US patents while listed as an inventor at Dropbox. The first was granted in 2015 and the most recent in October 2022. Dwayne Litzenberger ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Dwayne Litzenberger in San Francisco, CA, US.