| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 15 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Electrical machinery and energy | |
| #3 | Thermal processes | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Magnets and transformers | |
| #3 | Controlling combustion | |
| #4 | Refrigerators | |
| #5 | Electric switches | |
| #6 | Measuring temperature | |
| #7 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Delaporte-Denisselle | 6 |
| #2 | Denisselle | 4 |
| #3 | Delaporte | 4 |
| #4 | Denisselle Delaporte Et | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB916002A | Electromagnetic fluid control valve providing an adjustable throughput |