Norman D. Coffenberry

📍 Florence, KY: #59 of 184 inventorsTop 35%

🗺 Kentucky: #3,369 of 11,577 inventorsTop 30%

Overall (All Time): #1,656,704 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5184698	Expandable plug	—	1993-02-09
4974685	Freeze plug installation tool	—	1990-12-04
4930459	Freeze plug	—	1990-06-05