Prior to Co-Founding Stripe with his brother John, Patrick co-founded Auctomatic which was acquired by Live Current Media in 2008.
Patrick also wrote Encyclopedia, which stores a copy of Wikipedia on an iPhone and iPad. Encylopedia is available in the App Store in around 80 languages. More interestingly, Chris Ball ported it to the OLPC and distributed on around 250,000 XO-1 laptops. Patrick studied mathematics at MIT.