Thomas E. Hoff has been granted 86 US patents while listed as an inventor at Clean Power Research, L.L.C.. The first was granted in 1999 and the most recent in December 2025. Thomas E. Hoff ranks #19,585 of 4,157,543 US inventors in our database (top 0.47%). Patent records list Thomas E. Hoff in Napa, CA, US.