Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10099942 | Systems and methods of eliminating filter air locks | Doug Kellam, Liu Wei | 2018-10-16 |
| 9994459 | Gravity-fed and dual ion-exchange water filtration bottle | Doug Kellam, Byron Stanger, Ajit Dighe, Charles Lieppe | 2018-06-12 |