Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9044699 | Filtration system | Brian D. Gale, Karl Fritze, Laurence W. Bassett, Richard A. Kirchner | 2015-06-02 |
| D455814 | Cartridge for a water purification and treatment system | Jan Magnusson, Alan Lonneman | 2002-04-16 |
| 6193884 | Dripless purification manifold and cartridge | Jan Magnusson, Alan Lonneman | 2001-02-27 |
| D433094 | Cartridge connector | Jan Magnusson, Alan Lonneman | 2000-10-31 |
| 6027644 | Dripless purification manifold and cartridge | Jan Magnusson, Alan Lonneman | 2000-02-22 |
| 5753107 | Dripless purification manifold and cartridge | Jan Magnusson, Alan Lonneman | 1998-05-19 |
| 5273650 | Ceramic filter | Sheldon A. Vermes | 1993-12-28 |
| 4995976 | Water purification straw | Sheldon A. Vermes, Charles A. Peterson | 1991-02-26 |