| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 10 | |
| #2 | EPO (European Patent Office) | 1 | |
| #3 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Telecommunications | |
| #3 | Control | |
| #4 | Medical technology | |
| #5 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Telephonic communication | |
| #3 | Transmission | |
| #4 | Implantable devices | |
| #5 | Teaching materials | |
| #6 | Installation of electric cables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aahgren Ragnar | 4 |
| #2 | Oliveby Christer | 2 |
| #3 | Ahgren Ragnar | 1 |
| #4 | Werner P | 1 |
| #5 | Werner P A | 1 |
| #6 | Nystroem K | 1 |
| #7 | Schakowsky J | 1 |
| #8 | Heggbom L A | 1 |
| #9 | Buren S | 1 |
| #10 | Boman I | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0843427A1 | An arrangement for suppressing harmonic interference in signal transmission | |
| SE9400719D0 | Modularly constructed, portable system for hearing or visually handicapped persons | |
| SE9300228D0 | Direction-detecting hearing aid device | |
| SE9103346D0 | Portable device for enabling a person with serious hearing impairment to use conventional telephone apparatus in the public telephone network | |
| SE9000999D0 | Ringing-signal indicator | |
| SE8902023D0 | Device for unreeling and reeling-up signal-transmission cable |