| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 17 | |
| #2 | France | 5 | |
| #3 | Germany | 2 | |
| #4 | Spain | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Lighting device details | |
| #3 | Non-portable lighting devices | |
| #4 | Photosensitive materials | |
| #5 | Distribution of electric power | |
| #6 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ritter Uhlmann | 17 |
| Publication | Filing date | Title |
|---|---|---|
| GB191318086A | Improvements in or connected with Lamp-shades. | |
| GB191106081A | Improvements in or connected with Lamp-shades. |