ALEXANDER RINGLEB DR has a total of 15 patent applications. Its first patent ever was published in 1948. It filed its patents most often in Germany. Its main competitors in its focus markets audio-visual technology, electrical machinery and energy and optics are KARLSSON DENNIS, CHOI UK and PLUMLY GEORGE W.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Electrical machinery and energy | |
| #3 | Optics | |
| #4 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ringleb Dr Alexander | 15 |
| Publication | Filing date | Title |
|---|---|---|
| DE909683C | Light beam director | |
| DE838733C | Traffic light |