| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 1 | |
| #2 | Belgium | 1 | |
| #3 | Canada | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Germany | 1 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Italy | 1 | |
| #11 | Japan | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Norway | 1 | |
| #14 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Casings and printed circuits | |
| #2 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wirtz Leo | 9 |
| Publication | Filing date | Title |
|---|---|---|
| DE2946519A1 | WINDOW WITH ELECTROMAGNETIC AND ACOUSTIC SHIELDING |