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USPTO Patent Rankings Data through Sept 30, 2025
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Ferne R. Van Antwerp — 2 Patents

Unionville, IA: #1 of 1 inventorsTop 100%
Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,360,207 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4482166 Hitching guide 1984-11-13
4343484 Power hitch 1982-08-10