| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Germany | 4 | |
| #3 | France | 4 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Heat-exchange device details | |
| #2 | Venting or aerating devices | |
| #3 | Heat-exchanger without contact |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stahnke Hans | 3 |
| #2 | Bradtmoeller Ernst | 2 |
| #3 | Bradtmoller Ernst | 2 |
| #4 | Dreher Dipl-Ing Hans G | 2 |
| #5 | Heidenblut Manfred | 1 |
| #6 | Dreher Hans G | 1 |
| #7 | Althoff Dipl-Ing Georg-Friedri | 1 |
| #8 | Dreher Hans Georg | 1 |
| #9 | Olke Erich | 1 |
| #10 | Althoff Dipl-Ing Fritz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1118259A | A cone-diaphragm valve | |
| GB1074718A | Heat exchangers | |
| DE1241854B | Heat exchanger in the form of a block consisting of cylindrical graphite bodies | |
| DE1240897B | Heat exchanger for liquids | |
| DE1158335B | Diaphragm valve | |
| DE1098310B | Valve plate for rubberized high pressure valves |