Howard J. Kopel

📍 Hooker, OK: #1 of 7 inventorsTop 15%

🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%

Overall (All Time): #2,355,846 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4561393	Sealed unit for hydraulic lifter	—	1985-12-31
4466280	Hydraulic lifter train clearance control systems, elements and processes	—	1984-08-21