GRETENER EDGAR DR has a total of 15 patent applications. Its first patent ever was published in 1945. It filed its patents most often in Switzerland, Germany and Austria. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and optics are STAVELY DONALD J, ZHU HONGJING and FURUI SHIKI.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Germany | 7 | |
| #3 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Optics | |
| #4 | Digital networks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gretener Edgar Dr | 15 |
| Publication | Filing date | Title |
|---|---|---|
| DE864835C | Lighting device |