DS

David L. Sewell

📍 Madison, WI: #27 of 304 inventorsTop 9%
🗺 Wisconsin: #328 of 3,158 inventorsTop 15%
Overall (2004): #67,931 of 270,089Top 30%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D489395 Neckless lap guitar 2004-05-04
6693233 Neckless lap guitar 2004-02-17