MF

Martin E. Frenkel

SS Sargent-Welch Scientific: 1 patents #3 of 6Top 50%
📍 Round Lake Beach, IL: #72 of 110 inventorsTop 70%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,046,560 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4366834 Back-flow prevention valve David E. Hanson 1983-01-04