WC

William T. Callaham

PU Philip Morris Usa: 2 patents #212 of 607Top 35%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,298,902 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5178166 Filter cigarette Reginald W. Newsome, Alexander S. Gergely, Richard A. Thesing, Paul N. Gauvin, Warren E. Claflin +1 more 1993-01-12
4696312 Method and apparatus for producing cigarette filler Louis R. Turano, John F. Sherwood, Richard E. Thatcher 1987-09-29