Norwin W. Wolff has been granted 7 US patents while listed as an inventor at Interpolymer. The first was granted in 2000 and the most recent in October 2014. Norwin W. Wolff ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Norwin W. Wolff in Marshfield Hills, MA, US.