| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | United States | 3 | |
| #3 | Argentina | 2 | |
| #4 | Australia | 2 | |
| #5 | Belgium | 2 | |
| #6 | Canada | 2 | |
| #7 | Switzerland | 2 | |
| #8 | Germany | 2 | |
| #9 | France | 2 | |
| #10 | United Kingdom | 2 | |
| #11 | Israel | 2 | |
| #12 | India | 2 | |
| #13 | Italy | 2 | |
| #14 | South Africa | 2 | |
| #15 | Egypt | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Measurement | |
| #3 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Analysing materials | |
| #3 | Object sterilising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Free D | 7 |
| #2 | Scherrelies W | 5 |
| #3 | Free David | 5 |
| #4 | Shand W | 3 |
| #5 | Shand William A | 2 |
| #6 | Scherrelies Wolfgang | 2 |
| #7 | Shand W A | 2 |
| #8 | Free David Dr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4008045A | Ultra-violet sterilizer having a fluid flow diffuser plate | |
| CA966608A | Automatic tube cleaner for water sterilizer | |
| CA951135A | Sensor-eye for ultra-violet water sterilizer |