Mark E. Towner has been granted 2 US patents while listed as an inventor at Ocg Microelectronic Materials. The first was granted in 1989 and the most recent in September 1992. Mark E. Towner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Mark E. Towner in Gilbert, AZ, US.