| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 2 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Finland | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Italy | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Norway | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Implantable devices | |
| #2 | Telephonic communication |
| # | Name | Total Patents |
|---|---|---|
| #1 | Palmaer Leif | 8 |
| #2 | Palmaer Tore | 7 |
| #3 | Palmaer T | 2 |
| #4 | Palaer Tore | 1 |
| #5 | Palmaer L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SE9001348L | Pressure ring for hearing protection - comprises elastically compressible sealing ring behind which is rigid pressure ring | |
| IT8819801D0 | Pressure ring for persons with defective hearing | |
| CA1292099C | Pressure ring for ear cover | |
| NL8800493A | Pressure ring for persons with defective hearing - supports sealing ring and has arched locating surface | |
| GB8804041D0 | Pressure ring for ear cover | |
| FI880335A0 | Tryckring foer hoerselskydd. |