David J. O'Connell has been granted 27 US patents while listed as an inventor at Kohler. The first was granted in 1991 and the most recent in September 2006. David J. O'Connell ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list David J. O'Connell in Sheboygan, WI, US.