| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United Kingdom | 5 | |
| #3 | Belgium | 1 | |
| #4 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Chemical engineering | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Emergency protective circuit arrangements | |
| #3 | Cleaning | |
| #4 | Pumps | |
| #5 | Distribution of electric power |
| Publication | Filing date | Title |
|---|---|---|
| GB388351A | Improvements in metal vapour apparatus | |
| GB383289A | Improvements in metal vapour electric discharge apparatus | |
| GB375804A | Improvements in a reverse current relay arrangement for use in electric rectifier installations | |
| GB370405A | An improved process and apparatus for the protection of rectifiers against excess currents |