JH

John G. Harrel

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Lindsay, OK: #4 of 13 inventorsTop 35%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,292,372 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5288182 Boring bar holder and insert with precision placement insert locator means Harvey L. Patterson, Efren D. Ofalla 1994-02-22
5062756 Device for positioning and stabbing casing from a remote selectively variable location James R. McArthur, John Mayberry 1991-11-05