Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641737 | Vertical filter | Yongming Xia, James E. Thompson | 2003-11-04 |
| 6517712 | Descending bed filter | Yongming Xia, James E. Thompson | 2003-02-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641737 | Vertical filter | Yongming Xia, James E. Thompson | 2003-11-04 |
| 6517712 | Descending bed filter | Yongming Xia, James E. Thompson | 2003-02-11 |