| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 326 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Electrical machinery and energy | |
| #3 | Packaging and shipping | |
| #4 | Semiconductors | |
| #5 | Control | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication | |
| #2 | Selecting | |
| #3 | Electric switches | |
| #4 | Transport or storage devices | |
| #5 | Transmission | |
| #6 | Semiconductor devices | |
| #7 | Capacitors and switching devices | |
| #8 | Alarm systems | |
| #9 | Postal sorting | |
| #10 | Elevators and escalators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heyduck Alfred | 20 |
| #2 | Guenther Erhard | 13 |
| #3 | Vogel Georg | 13 |
| #4 | Steinbach Heinz | 13 |
| #5 | Bernutz Johannes | 12 |
| #6 | Mittag Fritz | 8 |
| #7 | Klinkhammer Dipl-Ing Kurt | 8 |
| #8 | Stobbe Dipl-Ing Helmut | 8 |
| #9 | Matthieu Johannes | 7 |
| #10 | Sass Karl | 7 |
| Publication | Filing date | Title |
|---|---|---|
| DE960560C | Arrangement for the transmission of switching criteria over AC-operated electricity distribution networks | |
| DE965511C | Method for closing housings made of thermoplastic materials for electrical switching elements |