| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 16 | |
| #2 | United Kingdom | 4 | |
| #3 | France | 2 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Materials and metallurgy | |
| #4 | Thermal processes | |
| #5 | Machines | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Electromechanical clocks | |
| #2 | Dynamo-electric machines | |
| #3 | Metal tempering | |
| #4 | Mechanically-driven clocks | |
| #5 | Burners | |
| #6 | Vehicle brake control systems | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Michl Robert | 2 |
| #2 | Robert Michl | 2 |
| #3 | Kaempe Hans | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB358673A | Improvements in electromagnetic escapements for clock mechanisms | |
| US1728692A | Electric clock drive | |
| GB235599A | Improvements in and relating to synchronous motors | |
| GB234514A | Speed regulator for power engines | |
| US1667794A | Device for the synchronization of alternating-current machines | |
| GB191313A | Improvements in and relating to synchronous motors for the electric drive of clockworks |