DS

Dean M. Siwiec

PU Philip Morris Usa: 4 patents #121 of 607Top 20%
🗺 Virginia: #7,477 of 34,511 inventorsTop 25%
Overall (All Time): #1,306,537 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4574819 Process for increasing the filling power of tobacco Norman B. Rainer 1986-03-11
4485829 Process for increasing the filling power of tobacco Norman B. Rainer 1984-12-04
4388933 Tobacco stem treatment and expanded tobacco product Norman B. Rainer 1983-06-21
4366823 Process for expanding tobacco Norman B. Rainer 1983-01-04