DS

David L. Simmons

UN Unknown: 1 patents #216 of 2,810Top 8%
📍 Sevierville, TN: #1 of 2 inventorsTop 50%
🗺 Tennessee: #275 of 1,269 inventorsTop 25%
Overall (2004): #236,653 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6687720 Percentage and average calculator with expanded display Dean Colver, Peter Kirkwood House 2004-02-03