| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | France | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Special electric heating or lighting | |
| #3 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilhelm Mathiesen | 1 |
| #2 | Mathiesen Wilhelm | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009555A | Means of changing the condition and the actinic qualities of open electric arc lights |