DG

Donald J. Gerber

KO Koppers: 2 patents #22 of 126Top 20%
Overall (All Time): #2,361,644 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4407352 High efficiency coke oven regenerator checker brick 1983-10-04
4376677 Coke oven heating wall 1983-03-15