DJ

Denis Johnson

📍 Barberton, OH: #3 of 9 inventorsTop 35%
🗺 Ohio: #711 of 5,754 inventorsTop 15%
Overall (2002): #68,138 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6481471 Spike roller for axial feeding or rotation of a log Yvon Johnson 2002-11-19
6453959 Spike roller for axial feeding or rotation of a log Yvon Johnson 2002-09-24