RF

Ronald A. Frazier

TW The Charles Machine Works: 2 patents #90 of 211Top 45%
📍 Perry, OK: #45 of 85 inventorsTop 55%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,200,700 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6543551 Pipe handling device Darrel W. Sparks, Richard W. McEwen, Arthur D. Deken, Cody L. Sewell, James E. Franklin +2 more 2003-04-08
6085852 Pipe handling device Darrel W. Sparks, Richard W. McEwen, Arthur D. Deken, Cody L. Sewell, James E. Franklin +1 more 2000-07-11