| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Ignition and extinguishing | |
| #2 | Portable lighting devices | |
| #3 | Burners | |
| #4 | Fluid heaters | |
| #5 | Walking sticks | |
| #6 | Smoking accessories |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karl Wieden | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB134231A | Wick Lamp Immune Against Explosion. |