| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Switzerland | 2 | |
| #3 | United States | 2 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Heat-exchange device details | |
| #2 | Pipes | |
| #3 | Heat-exchanger without contact | |
| #4 | Unspecified technologies | |
| #5 | Soldering, welding and flame cutting | |
| #6 | Domestic heating systems | |
| #7 | Punching metal | |
| #8 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heinz Markowz Karl | 7 |
| #2 | Liefering Otto | 7 |
| #3 | Markowz Karl Heinz | 3 |
| #4 | Karl-Heinz Markowz | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US3510156A | Device for transmitting flows | |
| GB1152517A | A room space heater |