| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | United States | 4 | |
| #3 | Republic of Korea | 3 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology | |
| #3 | Chemical engineering | |
| #4 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Separation | |
| #3 | Auxiliaries on vessels | |
| #4 | Soaps | |
| #5 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duan Dongxia | 11 |
| #2 | Liu Guangzhou | 10 |
| #3 | Yao Ping | 6 |
| #4 | Wang Hongren | 3 |
| #5 | Guangzhou Liu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP3299075A1 | Cleaning liquid for ship ballast water treatment filter and on-line cleaning device and method | |
| US2018148151A1 | Online antifouling ship ballast water treatment system and ship ballast water treatment method | |
| US2018148345A1 | Dehydrogenation tank and ballast water treatment system having the same |