| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 23 | |
| #2 | Austria | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Portable lighting devices | |
| #2 | Lighting device details | |
| #3 | Electrically-conductive connections | |
| #4 | Non-portable lighting devices | |
| #5 | Batteries | |
| #6 | Acetylene production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grard Alexandre | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB444234A | Improvements in electric lighting installations |