| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 6 | |
| #2 | United Kingdom | 3 | |
| #3 | Germany | 2 | |
| #4 | Switzerland | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Rotary pistons | |
| #3 | Venting or aerating devices | |
| #4 | Pumps | |
| #5 | Positive-displacement engines | |
| #6 | Spraying devices | |
| #7 | Unspecified technologies | |
| #8 | Refrigerators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Arsene Diffinger Fugene | 1 |
| #2 | Colombier Fils Etablissements | 1 |
| #3 | Diffinger Eugene-Arsene | 1 |
| #4 | Eugene Arsene Diffinger | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB406922A | Improvements in gate valves | |
| DE610965C | Gate valve with movable shut-off plates | |
| US1573683A | Rotary pump | |
| GB222013A | Improvements in rotary pumps | |
| GB213877A | Improvements in and relating to rotary compressors | |
| DE455543C | Lateral seal for rotary piston compressor with piston that can be moved in the piston drum |