RG

Ralph C. Gray

PI Ppg Industries: 2 patents #15 of 153Top 10%
📍 Washington, PA: #3 of 33 inventorsTop 10%
🗺 Pennsylvania: #389 of 4,367 inventorsTop 9%
Overall (1997): #27,099 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5693739 Phenolic polymers from amino phenols and anhydride or epoxy polymers Edward E. McEntire, Richard M. Nugent, Jr. 1997-12-02
5653790 Zinc phosphate tungsten-containing coating compositions using accelerators Nicephoros A. Fotinos, Donald Robb Vonk 1997-08-05