Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11839841 | Online cleaning device and online cleaning method | Dongxia Duan | 2023-12-12 |
| 10940930 | Online antifouling ship ballast water treatment system and ship ballast water treatment method | Dongxia Duan, Ping Yao | 2021-03-09 |
| 10781112 | Dehydrogenation tank and ballast water treatment system having the same | Dongxia Duan, Ping Yao, Hongren Wang | 2020-09-22 |