| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 9 | |
| #2 | Germany | 3 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Electrical machinery and energy | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication | |
| #2 | Alarm systems | |
| #3 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Claesson Per Harry Elias | 13 |
| #2 | Vigren Sten Daniel | 4 |
| #3 | Johansson Karl Lennart | 3 |
| #4 | Zander Rolf Albin | 3 |
| #5 | Freese Harry | 2 |
| #6 | Evert Iarnbrink Karl | 1 |
| #7 | Sangberg Claes Erik Magnus | 1 |
| #8 | Vigren Bureaudirektoer Sten Da | 1 |
| #9 | Elias Claesson Per Harry | 1 |
| #10 | Vigren Directoer Sten Daniel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA466251A | Automatic voltage and current regulating device | |
| CA589137A | Electric burglar alarm, capacity actuated |