ET

Edwin R. Tefft

CA Calgon: 2 patents #60 of 151Top 40%
Overall (All Time): #2,271,242 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5641808 Synergistic antimicrobial composition of 1,2-dibromo-2,4-dicyanobutane and esters of parahydroxybenzoic acid Tammy W. Gaffney 1997-06-24
4786364 DMDAAC/AM copolymers as deinkers 1988-11-22