| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | Ireland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machine tools | |
| #3 | Basic materials chemistry | |
| #4 | Machines | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Presses | |
| #3 | Working-up peat | |
| #4 | Shaping clay | |
| #5 | Fuels | |
| #6 | Writing or drawing tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Emele Otto | 10 |
| #2 | Otto Emele | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE1184324B | Filter press with filter plates designed to automatically detach the filter cake | |
| IE22878L | Desiccating moist material | |
| GB829944A | Process and apparatus for desiccating moist material | |
| US2932399A | Filter press mechanism |