DS

Donald J. Shellenberger

KO Koppers: 1 patents #44 of 126Top 35%
📍 Bethel Park, PA: #149 of 258 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,033,261 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4444555 Method for reducing stress corrosion cracking in high-temperature regenerative air heaters Horace B. Edwardsen 1984-04-24