Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6361690 | Extended area filter basket assembly and filter bag therefor | — | 2002-03-26 |
| 6132612 | Liquid deionizing twin bed apparatus | — | 2000-10-17 |
| 5196119 | Filtering system utilizing rotational flow and dual chambers | Harold H. Harms | 1993-03-23 |
| 5180489 | Filter cartridge having internal liquid trap | — | 1993-01-19 |