| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Gearing | |
| #3 | Unspecified technologies | |
| #4 | Electric switches | |
| #5 | Clutches and brakes | |
| #6 | Grinding or polishing devices | |
| #7 | Belts or cables for driving | |
| #8 | Wood saws |
| # | Name | Total Patents |
|---|---|---|
| #1 | Obermoser Albert | 5 |
| #2 | Albert Obermoser | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB736876A | Improvements in or relating to means for controlling the direction of rotation of electric motors | |
| US2730585A | Apparatus for the automatic control of electric motors | |
| US2209417A | Stepless gear control | |
| DE517816C | Device for converting open electrical machines with through ventilation into such a jacket-cooled design through closed hoods provided with a bore for the motor shaft, which are attached to both sides of the laminated core to achieve an airtight seal | |
| GB267981A | Improvements in or relating to means for transmitting power from an electric motor to machinery | |
| US1636484A | Band saw |