DH

David M. Hray

KE Kennametal: 2 patents #306 of 844Top 40%
📍 Solon, OH: #259 of 517 inventorsTop 55%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,169,916 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7059810 Gear hobbing cutter system Mark Alan Francis 2006-06-13
6609858 Gear hobbing cutter system Mark Alan Francis 2003-08-26