| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 3 | |
| #2 | Brazil | 2 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | Czechia | 1 | |
| #8 | Hungary | 1 | |
| #9 | Mexico | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Biotechnology | |
| #4 | Textiles and paper | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in wastewater treatment | |
| #2 | Water treatment | |
| #3 | Separation | |
| #4 | Microbiology | |
| #5 | Paper recycling | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vellinga Sjoerd Hubertus Josef | 7 |
| #2 | Vellinga Sjoerd Hubertus Jozef | 4 |
| #3 | Habets Leonard Hubertus Alphon | 2 |
| #4 | Mulder Ronald | 2 |
| #5 | Josef Vellinga Sjoerd Hubertus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL1018909C2 | Three-phase separator and biological waste water treatment plant. | |
| NL1016705C2 | Device and method for cleaning a fluid, such as water. | |
| NL1013491C2 | Recycled paper industry. |