DD

David Drymiller

📍 Bartlett, IL: #196 of 601 inventorsTop 35%
🗺 Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,493 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12288474 System and method for teaching arithmetic — 2025-04-29
11984041 System and method for teaching arithmetic — 2024-05-14
10325516 System and method for teaching arithmetic — 2019-06-18