Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6860393 | Filter device and filter element comprising at least one negatively charged membrane | Peter Konstantin, Yujing Yang | 2005-03-01 |
| 6851561 | Positively charged membrane | Xiaosong Wu, Jayesh Dharia, Peter Konstantin, Yujing Yang | 2005-02-08 |