Joe Penkunas

GP Gte Products: 1 patents #72 of 199Top 40%

📍 Madisonville, KY: #1 of 3 inventorsTop 35%

🗺 Kentucky: #54 of 406 inventorsTop 15%

Overall (1989): #93,573 of 140,708Top 70%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4865392	Rotatable cutting bit	Neil Portnoff	1989-09-12