DB

Dennis Wayne Barshter

EN Envirogen: 2 patents #7 of 20Top 35%
KH Kennecott Holdings: 1 patents #46 of 138Top 35%
Overall (All Time): #1,631,699 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5861303 Biofiltration apparatus and method with chemical pre-treatment of contaminated air Michael Arthur Del Vecchio 1999-01-19
5821114 Biofilter with modular panels and method of using the same Michael Arthur Del Vecchio 1998-10-13
4446357 Resistance-heated boat for metal vaporization 1984-05-01