Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Andrew E. Makkink

Sannieshof, ZA: #1 of 1 inventorsTop 100%
Overall (All Time): #1,034,214 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7001365 Infusion of liquids into the human or animal body 2006-02-21
5385596 Treating of agricultural soil 1995-01-31
5359948 Seed planting device 1994-11-01
4663960 Method of calibrating and calibrating device for agricultural chemical 1987-05-12
4495875 Administering of agricultural chemicals in liquid form 1985-01-29