| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | Canada | 8 | |
| #3 | Germany | 5 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Photosensitive materials | |
| #3 | Machines for artistic work |
| # | Name | Total Patents |
|---|---|---|
| #1 | Berthon Rodolphe | 7 |
| #2 | Brosse Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB293048A | Improvements in or relating to apparatus for use in colour photography | |
| GB287488A | Improvements in or relating to photographic cameras for colour photography | |
| CA291810A | Colour photography machine | |
| CA289493A | Kinematography mirror | |
| CA280207A | Photographic reproduction | |
| CA277393A | Film manufacture | |
| CA291809A | Film copying machine | |
| CA280208A | Film printing device | |
| CA291811A | Colour photograph film | |
| CA276492A | Cylinder for obtaining linear, refringent microscopic nets on kinematographic films |