Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435313 | Systems, devices, and methods of water filtration | Doug Kellam, Rajan G. Rajan, Liu Wei, Charles Lieppe | 2019-10-08 |
| 9994459 | Gravity-fed and dual ion-exchange water filtration bottle | Doug Kellam, Byron Stanger, Rajan G. Rajan, Charles Lieppe | 2018-06-12 |