| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Canada | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Spain | 2 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Photosensitive materials | |
| #2 | Internal-combustion piston engines | |
| #3 | Cameras | |
| #4 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Berthon Rodolphe | 9 |
| #2 | Audibert Maurice | 2 |
| #3 | Gambs Joseph | 1 |
| #4 | Rodolphe Berthon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191127389A | Apparatus for Photographing and Projecting Kinematographic and other Views. | |
| GB190910611A | Improvement in Three-colour Photographic Processes. | |
| US992151A | Apparatus for color photography. | |
| GB190620834A | Improvements in the Manufacture of Composite Screens and Plates for Heliochrome Processes. | |
| CA276346A | Film for colour kinematography | |
| CA358741A | Packing joint |