Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Donald Vander Schaaf — 1 Patent

VEVenturedyne: 1 patents #37 of 67Top 60%
Holland, MI: #791 of 1,299 inventorsTop 65%
Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,929,299 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
RE32933 Environmental test chamber 1989-05-30