DB

Donald J. Black

PI Ppg Industries: 1 patents #662 of 1,216Top 55%
📍 Akron, OH: #848 of 1,966 inventorsTop 45%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,338,041 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D297023 Mazed castle game board — 1988-08-02
4552682 Peroxide composition containing phenolic antioxidant Robert H. Tang 1985-11-12