| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 2 | |
| #2 | Canada | 2 | |
| #3 | China | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Republic of Korea | 2 | |
| #6 | United States | 2 | |
| #7 | France | 1 | |
| #8 | Japan | 1 | |
| #9 | Taiwan | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Materials and metallurgy | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Treatment of glass | |
| #2 | Electric incandescent lamps | |
| #3 | Manufacturing processes | |
| #4 | Non-portable lighting devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lefevre Christian | 14 |
| #2 | Lepesqueux Francois | 14 |
| #3 | Christian Lefevre | 2 |
| #4 | Francois Lepesqueux | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA2551519A1 | Red glass, manufacturing process for red glass, coloured ampoules and tubes obtained from such glass | |
| FR2864531A1 | AMBER GLASS, METHOD FOR MANUFACTURING TINTED BULBS AND TINTED BULBS OBTAINED WITH SUCH A GLASS |