John Heasley

📍 Iowa City, IA: #235 of 834 inventorsTop 30%

🗺 Iowa: #4,661 of 15,303 inventorsTop 35%

Overall (All Time): #1,590,429 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
7018206	Rubber dam frames with improved retraction, stability, and safety characteristics	—	2006-03-28
6981870	Rubber dam clamps retained by adhesion and improved frictional forces	—	2006-01-03
5800173	Absorbent polymer roll holder	—	1998-09-01