DS

Donald D. Simmons

📍 Dumfries, VA: #17 of 44 inventorsTop 40%
🗺 Virginia: #18,729 of 34,511 inventorsTop 55%
Overall (All Time): #3,634,499 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6150913 Magnetically-activated spinning disc — 2000-11-21