Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473360 | Length-adjustable filter cartridge end caps, filter cartridges employing, and methods of making, the same | Charles S. Hoffman, Jr., Norman Robillard | 2009-01-06 |
| 6706182 | Caged pleated filter cartridge assemblies and filtration systems employing the same | — | 2004-03-16 |
| 6495037 | Caged filter cartridge assembly and filtration systems employing the same | — | 2002-12-17 |