HH

Hilda Howell

KO Koppers: 1 patents #3 of 22Top 15%
📍 Pittsburgh, PA: #55 of 224 inventorsTop 25%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #58,968 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4325841 Non-free-amine promoter system for polyester composition 1982-04-20