RH

Roy L. Hall

📍 Hoffman Estates, IL: #8 of 29 inventorsTop 30%
🗺 Illinois: #566 of 2,749 inventorsTop 25%
Overall (1982): #34,777 of 81,411Top 45%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4319560 Solar heating system — 1982-03-16