| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | Finland | 1 | |
| #8 | Norway | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Hairstyling and cosmetic | |
| #2 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Popp Frank | 9 |
| #2 | Ritt Hermann | 1 |
| #3 | Popp F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3918234A1 | Rotary electrical coupling e.g. for hair drier - has inner and outer contact rings permitting limited rotational movement | |
| DE3723063A1 | HAIR DRYER | |
| DE3029619A1 | TUBE HAIRDRESSER |