Donald M. Downing

📍 Tulsa, OK: #626 of 2,344 inventorsTop 30%

🗺 Oklahoma: #3,359 of 12,736 inventorsTop 30%

Overall (All Time): #1,668,179 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4936485	Manually operated marker dispenser	—	1990-06-26
4887741	Thermal adhesive applicator	—	1989-12-19
4645152	Upright golf bag support	—	1987-02-24