John O'Neil

DI Dresser Industries: 1 patents #301 of 787Top 40%

📍 Bexley, OH: #48 of 94 inventorsTop 55%

🗺 Ohio: #30,338 of 73,341 inventorsTop 45%

Overall (All Time): #2,162,107 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7284946	Mobile skid turner	—	2007-10-23
4297057	Pivotal roof bolter and extendable rotatable protective canopy for mining machine	—	1981-10-27