RS

Robert J. Sirkoch

PI Ppg Industries: 2 patents #457 of 1,216Top 40%
Overall (All Time): #2,336,835 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4745003 Method for improving durability of mirrors utilizing radiation curable coatings Ken W. Niederst, Alan B. Weissberg, Paul P. Greigger, Calvin C. Henning 1988-05-17
4634602 Primer composition Kenneth W. Niederst 1987-01-06