Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4618431 | Method for stabilizing the relationship between the filtering unit and a filter feed pump | David B. Hindman, James S. Paduchowski | 1986-10-21 |
| 4612116 | Backwashable filtering apparatus and novel filter element therefor | David B. Hindman | 1986-09-16 |