Thomas E. Brennan has been granted 2 US patents while listed as an inventor at Hazelett Strip-Casting. The first was granted in 1984 and the most recent in June 2008. Thomas E. Brennan ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Thomas E. Brennan in South Hero, VT, US.