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John Sperry

📍 Uniontown, PA: #24 of 137 inventorsTop 20%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,561,021 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7942377 Beach umbrella stand including foot operated drive assembly for anchoring and method of use Robert Harold 2011-05-17
7503541 Beach umbrella stand including foot operated drive assembly for anchoring and method of use Robert Harold 2009-03-17
7246783 Beach umbrella stand including foot operated drive assembly for anchoring and method of use Robert Harold 2007-07-24