| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 7 | |
| #2 | United Kingdom | 6 | |
| #3 | Switzerland | 3 | |
| #4 | Spain | 3 | |
| #5 | Denmark | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric incandescent lamps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Krause Otto | 19 |
| Publication | Filing date | Title |
|---|---|---|
| ES136095A1 | Improvements in trunk locks with latch. | |
| GB191127360A | Improvements relating to Tungsten Wire especially suitable for use as Incandescence Body or Filament for Incandescent Electric Lamps. | |
| GB191024548A | Improvements in and relating to Incandescent Metal Filament Lamps. | |
| GB191011107A | Improvements in the Manufacture of Electric Metal Filament Lamps. | |
| CA139120A | Lamp | |
| GB191000350A | Metal Filament Lamps having Filament Carriers Arranged Elastically. |