SF

Steven F. Fritzman

📍 Fredericksburg, VA: #139 of 540 inventorsTop 30%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,333,171 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4867455 Two and three-dimensional square array, in-line array, and grid type game or puzzle 1989-09-19
4715605 Two and three-dimensional number game or puzzle 1987-12-29