HENRY RIEGEL EVANS has a total of 15 patent applications. Its first patent ever was published in 1915. It filed its patents most often in France, Germany and Australia. Its main competitors in its focus markets optics and electrical machinery and energy are REFLECTA GMBH FOTO, ICA AKT GES and GODOX PHOTO EQUIPMENT CO LTD.
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Lighting device details | |
| #3 | Non-portable lighting devices | |
| #4 | Processing photographic materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Evans Henry Riegel | 10 |
| Publication | Filing date | Title |
|---|---|---|
| AU1590515B | Improvements in or relating to the projection of coloured motion pictures |
