DC

David D. Calhoun

Overall (All Time): #1,747,504 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11897787 Zero discharge water treatment apparatus and method Mark D. Lorusso, R. Edward Rose, Jr., Ernest M. Hawkesworth 2024-02-13
11390545 Zero discharge water treatment apparatus and method Mark D. Lorusso, R. Edward Rose, Jr. 2022-07-19