| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Photosensitive materials | |
| #3 | Photomechanical semiconductor production | |
| #4 | Printing processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hermann Diernhofer | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB257782A | Improvements in or relating to colour photography | |
| US1570375A | Process for producing photographs in natural colors on paper | |
| GB182476A | Process for the production of transparencies for the projection of photographs in natural colours | |
| US1559316A | Method of and apparatus for the manufacture of diapositives for the projection of light pictures in natural colors | |
| US1507162A | Photographic apparatus for making heliochromes |