| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Switzerland | 4 | |
| #3 | Germany | 3 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Engines, pumps and turbines | |
| #3 | Basic materials chemistry | |
| #4 | Environmental technology | |
| #5 | Transport | |
| #6 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Guyer Hans | 5 |
| #2 | Hans Guyer | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB180649A | Improved method of working refrigerating plants provided with rotary centrifugal compressors | |
| FR459598A | A method of operating a relief valve or check valve in compressors and centrifugal pumps |