JF

John W. Friend

SV Sporlan Valve: 1 patents #9 of 20Top 45%
📍 Rock Hill, MO: #4 of 6 inventorsTop 70%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #3,810,973 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5364066 Dual port valve with stepper motor actuator David Charles Dorste, Dennis L. Hoehne, Donald L. Tillotson 1994-11-15