| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Switzerland | 3 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Consumer goods | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Packaging and shipping | |
| #6 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Refrigerators | |
| #2 | Air-conditioning | |
| #3 | Ice-boxes | |
| #4 | Steam traps | |
| #5 | Rotary-pistons | |
| #6 | Hand-held cutting tools | |
| #7 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chapuis Henri | 7 |
| #2 | Henri Chapuis | 1 |
| #3 | Lequeux Christian | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3542497A | Rotary air compressor | |
| CA877654A | Rotary air or gas compressor for decreasing the energy consumed in vacuum |