Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8425771 | Double chamber water purification device | Paul W. O'Brien | 2013-04-23 |
| 8394268 | Double chamber water purification device | Paul W. O'Brien | 2013-03-12 |
| 8318011 | Portable drinking water purification device | Paul W. O'Brien | 2012-11-27 |
| 8216462 | Portable drinking water purification device | Paul W. O'Brien | 2012-07-10 |