DUCHARD HENRI MAURICE has a total of 13 patent applications. Its first patent ever was published in 1924. It filed its patents most often in Austria, Switzerland and Spain. Its main competitors in its focus markets audio-visual technology are CLARE MICRONIX INTEGRATED SYST, MIZUKOSHI SEIICHI and JADARD TECHNOLOGY INC.
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Display controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duchard Henri Maurice | 6 |
| #2 | Henri Maurice Duchard | 3 |
| #3 | Harry Eeles Frederick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES114781A1 | Improvements in luminous advertising devices by means of mobile light letters. | |
| ES108519A1 | A system of advertising apparatus. | |
| CA311619A | Publicity apparatus |