| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Austria | 2 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Norway | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erb Georg O | 1 |
| #2 | Erb G D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2535622A1 | Flat surface electrical heating element - consisting of aggregate of conducting particles held between insulating layers | |
| GB1434049A | Storage heater | |
| DE2238718A1 | Bonded metal oxide heat insulating layer - comprising aluminium and zircon-ium oxides in water glass | |
| DE2238611A1 | Electrical storage heater - has bulk heat storage material charge based on iron rich material | |
| DE2238612A1 | STORAGE HEATING UNIT FOR GAS-FORM HEAT EXTRACTION MEDIUM | |
| DE2238592A1 | Protecting metal components against scaling - by applying powdered corro-sion-resistant metal in water glass glue |