| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | Australia | 2 | |
| #5 | United States | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Telecommunications | |
| #3 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johannsen Leif | 10 |
| #2 | Andersen Morten Kjeldsen | 7 |
| #3 | Leif Johannsen | 4 |
| #4 | Hansen Kaj Borge | 3 |
| #5 | Van Halteren Aart Zeger | 3 |
| #6 | Kjeldsen Andersen Morten | 3 |
| #7 | Jensen Finn | 2 |
| #8 | Finn Jensen | 1 |
| #9 | Johannsen K B Hansen L | 1 |
| #10 | Zeger Halteren Aart Van | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1672461A | One-magnet rectangular transducer | |
| AU2003245868A1 | Mobile handset and assembly having multi-loudspeaker system | |
| WO03063545A1 | Flexible diaphragm with integrated coil | |
| US6931140B2 | Electro-acoustic transducer with two diaphragms | |
| WO03024151A1 | An electro-acoustic transducer with two diaphragms |