Crispian Tompkin has been granted 79 US patents while listed as an inventor at Merchsource. The first was granted in 2008 and the most recent in November 2023. Crispian Tompkin ranks #23,150 of 4,157,543 US inventors in our database (top 0.56%). Patent records list Crispian Tompkin in El Segundo, CA, US.