Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10309666 | Filter cartridge, roller, and air humidifier | Alfred Hitzler | 2019-06-04 |
| 8233783 | Apparatus for utilizing water | Alfred Hitzler | 2012-07-31 |
| 7654508 | Air humidifier | Alfred Hitzler | 2010-02-02 |