I invented a way for a search engine to produce relevant results for stop words. So a search for "Let It Be" (three common stop words ignored by most search engines) would find the Beatles and the album that the song appears on. I'm the sole inventor on the subsequent patent: United States Patent #6,877,002 "Fuzzy Database Retrieval"
Invented key component of the multi-player tech for Playstation Network. This work also resulted in a patent (but I was not credited, doh!) United States Patent #5,841,980 Claim #6
Have been building iOS Apps since 2008, with some success and mostly great ratings.