Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Harold Blumhardt — 2 Patents

Ashley, ND: #1 of 1 inventorsTop 100%
North Dakota: #797 of 2,395 inventorsTop 35%
Overall (All Time): #2,357,492 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4441655 Agricultural spraying apparatus 1984-04-10
4223741 Vehicle for agricultural use with transport wheels 1980-09-23