WC

William V. Colbert

EN Envirotech: 2 patents #17 of 100Top 20%
Overall (All Time): #2,373,981 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4226706 Dispersed air flotation machine Vernon R. Degner 1980-10-07
4220612 Flotation cell feed duct Vernon R. Degner 1980-09-02