| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Consumer goods | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Lighting device details | |
| #2 | Portable lighting devices | |
| #3 | Electrically-conductive connections | |
| #4 | Pipes | |
| #5 | Brushes | |
| #6 | Electric switches | |
| #7 | Writing or drawing tools | |
| #8 | Handles for hand implements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rademacher Ernst | 6 |
| Publication | Filing date | Title |
|---|---|---|
| GB391798A | Improvements in pencil leads | |
| GB362701A | Improved fastening means for the protective glasses of hand lamps | |
| GB326083A | Electric hand lamp |