Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821430 | Method of treating reverse osmosis membrane element, and reverse osmosis membrane module | Masaaki Andou, Terutaka Watanabe, Hisao Hachisuka, Mark Wilf, Craig R. Bartels +1 more | 2004-11-23 |
| 6805796 | Water treatment apparatus | Atsushi Hiro, Mark Wilf | 2004-10-19 |
| 6723422 | Composite reverse osmosis membrane and process for preparing the same | Hiroki Ito, Tomomi Ohara | 2004-04-20 |
| 6709590 | Composite reverse osmosis membrane and method for producing the same | — | 2004-03-23 |