| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Austria | 2 | |
| #5 | France | 2 | |
| #6 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Chemical or physical processes | |
| #3 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gross Giulio | 8 |
| #2 | Giulio Gross | 4 |
| Publication | Filing date | Title |
|---|---|---|
| DE2203115A1 | Ion exchange agent sterilisation - eg in water softening plants | |
| GB1275766A | An automatic water softener for household use | |
| GB1275794A | A multi-passage valve unit for water softening plants | |
| GB1275673A | A multi-passage valve unit |