| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 8 | |
| #2 | Germany | 8 | |
| #3 | Switzerland | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Machines | |
| #2 | Cyclically operating valves | |
| #3 | Measuring force, work and fluid pressure | |
| #4 | Resistors | |
| #5 | Internal-combustion piston engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | H Liebra Motorengesellschaft M | 1 |
| #2 | Motorengesellschaft M B H Lieb | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE347840C | Device for determining the pressure in the cylinders of high-speed machines | |
| DE343932C | Multi-cylinder pump or compressor with direct working cylinder drive | |
| DE340789C | Piston engine | |
| DE341838C | Idle device for steam engines with in a circle around the shaft parallel to this arranged, working in stroke sequence cylinders | |
| DE351589C | Rotary valve control | |
| DE345813C | Piston engine | |
| DE369393C | Explosion or internal combustion engine | |
| DE362541C | Regulating resistor |