Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641733 | Apparatus and method for cleaning membrane filtration modules | Fufang Zha | 2003-11-04 |
| 6524481 | Apparatus and method for cleaning membrane filtration modules | Fufang Zha | 2003-02-25 |