| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 21 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Foods and drinks | |
| #3 | Measurement | |
| #4 | Civil engineering | |
| #5 | Control | |
| #6 | Engines, pumps and turbines | |
| #7 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Drying solid materials by removing liquid | |
| #2 | Food preservation | |
| #3 | Measuring temperature | |
| #4 | Construction of roads | |
| #5 | Fodder | |
| #6 | Foods | |
| #7 | Fluid heaters | |
| #8 | Control or regulating systems | |
| #9 | Meteorology | |
| #10 | Steam engine plants |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koeniger Dr-Ing Walther | 4 |
| #2 | Wessel Dipl-Ing Karl | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE1086916B | Device for displaying certain temperature combinations of two media | |
| DE1011169B | Device for displaying certain temperature combinations of two media | |
| DE669046C | Process for drying agricultural and horticultural products | |
| DE671193C | Dry processes, especially for agricultural and horticultural products | |
| DE748708C | Process for the production of pellets from potato or beet flakes |