Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225078 | Pour-through pitcher filter | Vue X. Yang | 1993-07-06 |
| 5180491 | Apparatus for removal of iron from drinking water | — | 1993-01-19 |
| 5061367 | Water purifying filter device | Gary L. Hatch | 1991-10-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225078 | Pour-through pitcher filter | Vue X. Yang | 1993-07-06 |
| 5180491 | Apparatus for removal of iron from drinking water | — | 1993-01-19 |
| 5061367 | Water purifying filter device | Gary L. Hatch | 1991-10-29 |