| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 20 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Textiles and paper | |
| #3 | Optics | |
| #4 | Machine tools | |
| #5 | Engines, pumps and turbines | |
| #6 | Machines | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Knitting | |
| #3 | Centrifuges | |
| #4 | Shafts | |
| #5 | Presses | |
| #6 | Sewing | |
| #7 | Cameras | |
| #8 | Cooling of machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jung Hans | 10 |
| #2 | Hans Jung | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB897315A | An improved method and apparatus for separating a sludge into filtrate and residue | |
| US2963158A | Filter | |
| GB841573A | Continuously operating cylindrical immersion pressure filter | |
| GB322091A | Improvements in or relating to apparatus for filtering liquids under pressure | |
| GB176495A | Improvements in and relating to rotary disc filters |