CW

Cletus N. Welch

PI Ppg Industries: 1 patents #48 of 198Top 25%
📍 Wilmington, OH: #3 of 10 inventorsTop 30%
🗺 Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #124,662 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4880667 Photochromic plastic article and method for preparing same — 1989-11-14