| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic communication technologies | |
| #3 | Optics | |
| #4 | Control | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Tuning resonant circuits | |
| #2 | Capacitors and switching devices | |
| #3 | Cameras | |
| #4 | Dynamo-electric machines | |
| #5 | Shafts | |
| #6 | Money sorting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Marcel-Paul | 1 |
| #2 | Sibrik | 1 |
| #3 | Brochard Peruchon De | 1 |