| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 19 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic materials chemistry | |
| #3 | Materials and metallurgy | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Electric incandescent lamps | |
| #2 | Electric discharge tubes | |
| #3 | Magnets and transformers | |
| #4 | Electric switches | |
| #5 | Treatment of glass | |
| #6 | Books | |
| #7 | Special lubricating compositions | |
| #8 | Lubricating compositions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Osram La Lampe | 7 |