RK

Robin A. Kyffin

Overall (All Time): #1,645,840 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5482458 Heat treatment of expansible materials to form lightweight aggregate 1996-01-09
4906183 Treatment of expansible materials to form lightweight aggregate Peter A. Young, Allon C. Day 1990-03-06
4728471 Treatment of expansible materials to form lightweight aggregate Peter A. Young, Allon C. Day 1988-03-01