| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 11 | |
| #2 | Austria | 2 | |
| #3 | Switzerland | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Electrically-conductive connections | |
| #3 | Unspecified technologies | |
| #4 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jakobsen Jakob Peter | 17 |
| #2 | Jensen Hans Frederik | 11 |
| #3 | Krebs Georg Otto | 3 |
| #4 | Jakob Peter Jakobsen | 2 |
| #5 | Georg Otto Krebs | 1 |
| #6 | Hans Frederik Jensen | 1 |
| #7 | Jensen Hans Frederick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191314330A | Improvements in Combined Switches and Plug Contacts. | |
| US1128147A | Gearing. | |
| US1003111A | Electric switch. | |
| GB190925551A | Improvements in Electric Switches. |