| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 6 | |
| #2 | Austria | 3 | |
| #3 | Germany | 3 | |
| #4 | France | 3 | |
| #5 | Netherlands | 3 | |
| #6 | United States | 3 | |
| #7 | United Kingdom | 2 | |
| #8 | Belgium | 1 | |
| #9 | Canada | 1 | |
| #10 | Spain | 1 | |
| #11 | Israel | 1 | |
| #12 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jean-Jacques Asper | 5 |
| #2 | Asper Jean-Jacques | 5 |
| #3 | Asper Jean Jacques | 1 |
| #4 | Sigmund Bornhauser M | 1 |
| #5 | Bornhauser Sigmund | 1 |
| #6 | William Jean-Mairet | 1 |
| #7 | Jean Jacques Asper | 1 |
| #8 | Charles Doucet | 1 |
| #9 | Viktor Laemmler | 1 |
| #10 | Asper J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH541981A | Pressurized fluid filter unit - for use in multiple installations with automatic cleaning | |
| CA977289A | Rapidly renewable particulate layer pressure filter | |
| IL27426A | Device for scraping the filter element of a filtering cell | |
| GB1138219A | Filter element scraping device | |
| US3392835A | Continuously and automatically cleaning multicellular filters |