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John L. Hadfield, Sr.

📍 Lehi, UT: #175 of 463 inventorsTop 40%
🗺 Utah: #6,041 of 19,430 inventorsTop 35%
Overall (All Time): #1,600,451 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6938882 Knocked-down, rigid, sheathed, gate frame Robert Calton 2005-09-06
6491286 Knocked-down, rigid, sheathed, gate frame Robert Calton 2002-12-10
6446938 Knocked-down, rigid, sheathed, gate frame Robert Calton 2002-09-10