| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 3 | |
| #2 | Austria | 2 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 2 | |
| #5 | United States | 2 | |
| #6 | Germany | 1 | |
| #7 | France | 1 | |
| #8 | Italy | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Electrical machinery and energy | |
| #3 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Electric discharge tubes | |
| #3 | Modulation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johansson Paul-Johny | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US3944490A | Dialysis apparatus for purifying fluid substances | |
| US3966612A | Dialysis apparatus for purification of a medium, preferably blood |