Don Metcalf

📍 Mattoon, IL: #2 of 7 inventorsTop 30%

🗺 Illinois: #2,633 of 7,998 inventorsTop 35%

Overall (2018): #432,720 of 503,207Top 90%

Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9987740	Vent manipulation system	—	2018-06-05