| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 4 | |
| #2 | Australia | 3 | |
| #3 | Germany | 3 | |
| #4 | Canada | 2 | |
| #5 | Spain | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Sweden | 2 | |
| #8 | United States | 2 | |
| #9 | German Democratic Republic | 1 | |
| #10 | Denmark | 1 | |
| #11 | France | 1 | |
| #12 | Hong Kong | 1 | |
| #13 | Croatia | 1 | |
| #14 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Implantable devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Griebel Peter | 6 |
| #2 | Sickel Liesbet | 5 |
| #3 | Sickel Helmut | 4 |
| #4 | Gatzsch Konstantin | 4 |
| #5 | Veit Ivar | 3 |
| #6 | Grimminger Wolf | 1 |
| #7 | Liesbet Sickel | 1 |
| #8 | Sickel Helmut Dr Med | 1 |
| #9 | Sickel H | 1 |
| #10 | Peter Griebel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3529553A1 | TALKING OPERATOR FOR TALK-HEAD OPERATED | |
| DE2818144A1 | Voice aid device for larynx surgery | |
| DK590575A | Voice aid appliances for structured operators |