O. Paul Trentham

📍 Joplin, MO: #1 of 20 inventorsTop 5%

🗺 Missouri: #165 of 1,513 inventorsTop 15%

Overall (2003): #49,469 of 273,478Top 20%

Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6651605	Rotary valve for piston engine	—	2003-11-25
6578538	Rotary valve for piston engine	—	2003-06-17