| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Germany | 3 | |
| #3 | Republic of Korea | 3 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | Taiwan | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 | |
| #8 | China | 1 | |
| #9 | Hong Kong | 1 | |
| #10 | Japan | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology | |
| #3 | Chemical engineering | |
| #4 | Machines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Auxiliaries on vessels | |
| #3 | Flotation | |
| #4 | Unspecified technologies | |
| #5 | Ships | |
| #6 | Separation | |
| #7 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamann Knud | 19 |
| #2 | Hamann Holger | 8 |
| #3 | Knud Hamann | 2 |
| #4 | Holger Hamann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102009019428A1 | Device for clarifying wastewater on ships | |
| DE102008046913A1 | Apparatus for wastewater treatment | |
| EP1447384A1 | Apparatus for removing and deactivating organisms present in ballast water | |
| DE10352636A1 | Process and plant for the treatment of waste water on ships |