Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733675 | Spiral wound membrane element, spiral wound membrane module and treatment system employing the same as well as running method and washing method therefor | Masaaki Ando, Katsumi Ishii | 2004-05-11 |