DH

David D. Hayes

UN Unknown: 1 patents #216 of 2,810Top 8%
📍 Hartville, OH: #5 of 12 inventorsTop 45%
🗺 Ohio: #1,400 of 5,375 inventorsTop 30%
Overall (2004): #239,585 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6701573 Fast assembly hinge Nick E. Ciavarella 2004-03-09