| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Photosensitive materials | |
| #2 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamburger Aron | 3 |
| #2 | Aron Hamburger | 2 |
| #3 | Ernest Coston Herbert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB301962A | Improvements in and relating to photographic sensitive materials | |
| US1661611A | Camera for color photography | |
| GB237941A | Improvements in cameras for colour photography | |
| GB203358A | Improvements relating to colour photography and the like | |
| DE329273C | Process for producing the yellow partial image for subtractive three-color photographs |