| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | Chile | 2 | |
| #4 | China | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Finland | 2 | |
| #7 | Israel | 2 | |
| #8 | Republic of Korea | 2 | |
| #9 | Peru | 2 | |
| #10 | Philippines | 2 | |
| #11 | Singapore | 2 | |
| #12 | WIPO (World Intellectual Property Organization) | 2 | |
| #13 | Brazil | 1 | |
| #14 | Hungary | 1 | |
| #15 | Mexico | 1 | |
| #16 | Serbia | 1 | |
| #17 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Chemical engineering | |
| #3 | Mechanical elements | |
| #4 | Control | |
| #5 | Environmental technology | |
| #6 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pohjola Heikki | 13 |
| #2 | Pohjola Heikki Antero | 12 |
| #3 | Heikki Antero Pohjola | 4 |
| Publication | Filing date | Title |
|---|---|---|
| FI20195229A1 | Reject valve of reverse osmosis system | |
| FI20175650A1 | Reject valve for a reverse osmosis device | |
| RS58257B1 | Method and arrangement for maintaining fluid flow pressure in a system at a preset, almost constant level |