| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machine tools | |
| #3 | Mechanical elements | |
| #4 | Textiles and paper | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Supplying combustion engines | |
| #2 | Clutches and brakes | |
| #3 | Couplings | |
| #4 | Making screws | |
| #5 | Knitting | |
| #6 | Gas-turbine plants | |
| #7 | Gearing | |
| #8 | Accessories for machine tools | |
| #9 | Metal wire processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Max Kreher | 1 |
| #2 | Wolf Reinhold | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB335133A | Improvements in internal-combustion turbines | |
| GB337505A | Improvements in carburettors for internal-combustion engines | |
| GB326526A | Floatless carburettor | |
| US1741524A | Power-transmission mechanism | |
| GB300338A | Improvements relating to hydraulic clutches and speed varying mechanism |