| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Sweden | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Compressed gas holders | |
| #3 | Unspecified technologies | |
| #4 | Cyclically operating valves | |
| #5 | Pumps | |
| #6 | Positive-displacement engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Elkuch Ludwig | 4 |
| #2 | Matsukusu Keeraa | 1 |
| #3 | Koehler Max | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH607646A5 | Valve unit on a container for liquid gas | |
| ES375466A1 | Container filling means |