AS

Athelstan Spilhaus

📍 Middleburg, VA: #10 of 35 inventorsTop 30%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,350,651 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4627622 Map puzzle having periodic tesselated structure — 1986-12-09
4520572 Geographical sundial — 1985-06-04