RW

Robert C. Winkelman

EN Envirex: 1 patents #27 of 52Top 55%
Overall (All Time): #3,988,354 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4563282 Wastewater treatment plant and method John W. Wittmann, Douglas F. Mooers, Richard Davie 1986-01-07