Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796550 | Humidifier filter servicing and water level indicator | — | 2004-09-28 |
| 6779739 | Water display system with germicidal light source | — | 2004-08-24 |
| D492761 | Air cleaner filter | Michael Ellis Smith | 2004-07-06 |
| D492400 | Air filtration device | Michael Ellis Smith | 2004-06-29 |
| 6715739 | Evaporative humidifier | Michael Ellis Smith, Anthony V. Cruz | 2004-04-06 |