RJ

Roy J. Hartfield, Jr.

📍 Auburn, AL: #11 of 48 inventorsTop 25%
🗺 Alabama: #153 of 682 inventorsTop 25%
Overall (2011): #181,589 of 364,097Top 50%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8037863 Positive displacement rotary vane engine — 2011-10-18