| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 54 | |
| #2 | France | 11 | |
| #3 | Switzerland | 8 | |
| #4 | Austria | 6 | |
| #5 | United States | 6 | |
| #6 | Sweden | 4 | |
| #7 | Belgium | 3 | |
| #8 | Denmark | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Reeber Karl | 23 |
| #2 | Heinz Seelbach | 7 |
| #3 | Seelbach H | 6 |
| #4 | Seelbach Heinz | 6 |
| #5 | Eversberg G | 4 |
| #6 | Reininghaus Arnold | 2 |
| #7 | Gerhard Eversberg | 2 |
| #8 | Sellbach H | 1 |
| #9 | Eversberg Gerhard | 1 |
| #10 | Dieter Guellert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3781754A | Lighting device | |
| US3725695A | Illumination device | |
| US3718816A | Illumination device | |
| US3551618A | Connecting boxes including switching means for illuminating devices | |
| DE859333C | Tube lamp | |
| DE880030C | Light, in particular tubular light | |
| DE822696C | Tube lamp with a translucent tube held between the end plates of the base | |
| DE813283C | Luminaire with a translucent tube held between removable end caps of the base |