| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | Austria | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Basic materials chemistry | |
| #3 | Chemical engineering | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Construction of roads | |
| #2 | Drying solid materials by removing liquid | |
| #3 | Load transportation vehicles | |
| #4 | Working-up pitch |
| # | Name | Total Patents |
|---|---|---|
| #1 | Albrecht Reiser Firma | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE666115C | Rotating drying drum with built-in blades | |
| DE670784C | Drum-shaped stove for mastic asphalt with an agitator | |
| DE582932C | Mastic asphalt cooking machine | |
| DE528233C | Drying drum, especially for road building materials | |
| DE546665C | Loading device for mastic asphalt cooker | |
| DE495740C | Mastic asphalt stove | |
| DE528655C | Drying drum for road building materials | |
| DE482457C | Mastic asphalt stove |