Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7143897 | Water filter | Guillermo Guzman | 2006-12-05 |
| 7094334 | Water filter having a filter use time indicator | Guillermo Guzman | 2006-08-22 |
| D457596 | Water filter | Guillermo Guzman | 2002-05-21 |