| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 17 | |
| #2 | Germany | 9 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Thermal processes | |
| #3 | Mechanical elements | |
| #4 | Basic materials chemistry | |
| #5 | Consumer goods | |
| #6 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mewes Rudolf | 20 |
| #2 | Rudolf Mewes | 2 |
| #3 | Schumann August | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE398092C | Method for producing sound bodies | |
| US1510793A | Apparatus for liquefying and separating gas mixtures | |
| GB190524144A | Process for Liquefying Air and Winning Oxygen. |