Donald M. Downing

📍 Tulsa, OK: #27 of 151 inventorsTop 20%

🗺 Oklahoma: #151 of 749 inventorsTop 25%

Overall (1989): #119,759 of 140,708Top 90%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4887741	Thermal adhesive applicator	—	1989-12-19