Herbert E. Menhennett has been granted 9 US patents while listed as an inventor at Bpm Technology. The first was granted in 1986 and the most recent in October 1999. Herbert E. Menhennett ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Herbert E. Menhennett in Windham, NH, US.