FF

Frank H. Freeman

SY Sybron: 3 patents #9 of 98Top 10%
Overall (All Time): #1,682,890 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4375966 System for making direct oral impression tray 1983-03-08
4252526 Barium aluminum silicate filler for U.V. curable composites Narayanan Madhavan 1981-02-24
4192795 Barium aluminum silicate filler for U.V. curable composites Narayanan Madhavan 1980-03-11