GY

Gui Yu

KO Koppers: 2 patents #22 of 126Top 20%
Overall (All Time): #2,341,981 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4656023 Hyperstoichiometric zirconium-titanium-chromium iron alloys William Eric Wallace 1987-04-07
4567032 Zirconium-manganese-iron alloys William Eric Wallace 1986-01-28