Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916439 | Advanced safe water treatment system | — | 1999-06-29 |
| 5236578 | Filter life indicator for water purification system using magnetically actuated switch | Evan P. Browne, James D. Meyer | 1993-08-17 |