| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Thermal processes | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Drying solid materials by removing liquid | |
| #2 | Separation | |
| #3 | Feeding fuel to combustion device | |
| #4 | Refrigerators | |
| #5 | Cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gerlach Albert | 2 |
| #2 | Albert Gerlach | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB443475A | Improvements in cell drum suction filters | |
| GB457545A | Improvements in suction filters | |
| US1364105A | Rotary apparatus for treating loose material with gaseous fluids |