Richard H. Hayes

EI Eagle-Picher Industries: 1 patents #4 of 15Top 30%

📍 Tallmadge, OH: #4 of 13 inventorsTop 35%

🗺 Ohio: #715 of 3,574 inventorsTop 25%

Overall (1989): #65,969 of 140,708Top 50%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4885936	Automatic loadwheel cleaner	—	1989-12-12