| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | France | 6 | |
| #3 | United Kingdom | 5 | |
| #4 | Switzerland | 3 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Transport | |
| #3 | Weapons | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rotary pistons | |
| #2 | Rotary-pistons | |
| #3 | Internal-combustion piston engines | |
| #4 | Rocket launchers | |
| #5 | Supplying combustion engines | |
| #6 | Mountings for cannons and pistols | |
| #7 | Cycle accessories | |
| #8 | Gearing | |
| #9 | Cycles | |
| #10 | Controlling combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schmied Walther | 6 |
| #2 | Walther Schmied | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US1558639A | Rotary machine | |
| GB201563A | Improvements relating to the cooling of gases or vapours during their compression in rotary compressors | |
| GB154215A | Improvements in or relating to two stroke cycle internal combustion engines | |
| GB153327A | Multiple-acting rotary pumps | |
| GB150316A | Improvements in and relating to rotary pumps | |
| GB191025470A | Improvements in and relating to Internal Combustion Engines. |