| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Measurement | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Domestic stoves for solid fuels | |
| #2 | Domestic stoves | |
| #3 | Measuring volume | |
| #4 | Hand carried bags |
| # | Name | Total Patents |
|---|---|---|
| #1 | Drehmann Hugo | 2 |
| #2 | Hugo Drehmann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1723413A | Device for roasting, baking, and steaming | |
| GB286297A | Appliance for roasting, baking, stewing, and like purposes |