John W. Riddel

General Motors: 3 patents #4,693 of 18,328Top 30%

📍 Fenton, MI: #131 of 454 inventorsTop 30%

🗺 Michigan: #27,158 of 86,293 inventorsTop 35%

Overall (All Time): #1,683,134 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4383411	Diesel exhaust cleaner with burner vortex chamber	—	1983-05-17
4220218	Vehicle road speed control system with flow amplifier	—	1980-09-02
4217969	Position feedback valve assembly and servo motor incorporating same	—	1980-08-19