John G. Kovalchek

📍 Clearwater, FL: #473 of 932 inventorsTop 55%

🗺 Florida: #33,682 of 67,251 inventorsTop 55%

Overall (All Time): #3,987,183 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4712797	Golf putter with sighting device	—	1987-12-15