| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | France | 4 | |
| #3 | Austria | 1 | |
| #4 | United States | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Friedrich Pavelka | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB527323A | Improvements in or relating to electrolytic condensers | |
| GB490795A | Improvements in or relating to the obtainment of aluminium of large reactive surface | |
| GB482856A | Improvements in or relating to electrolytic condensers | |
| US2168135A | Electrolytic condenser | |
| GB394116A | Glass foot for thermionic valves and the like and process for making the same | |
| GB396361A | Loud speaker system or the like with a permanent magnet |