DH

Donald R. Hughes

GT Greenleaf Technology: 3 patents #1 of 2Top 50%
📍 Meadville, PA: #2 of 9 inventorsTop 25%
🗺 Pennsylvania: #648 of 7,529 inventorsTop 9%
Overall (2017): #80,588 of 506,227Top 20%
3
Patents 2017

Issued Patents 2017

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9834891 Rail re-profiling method and apparatus Charles D. Grabowski 2017-12-05
9827621 Cutting tool including a cutting insert retaining and adjusting mechanism 2017-11-28
9617691 Rail re-profiling method and apparatus Charles D. Grabowski 2017-04-11