RG

Ronald E. Graf

📍 Greensboro, NC: #33 of 117 inventorsTop 30%
🗺 North Carolina: #1,349 of 4,532 inventorsTop 30%
Overall (2011): #181,834 of 364,097Top 50%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7874175 Heat engine / heat pump using centrifugal fans — 2011-01-25