| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Fluid heaters | |
| #3 | Measuring electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kordatzki Dr Willy | 4 |
| #2 | Walter Fritz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE716596C | Device for I? Measurement | |
| DE626151C | Device for measuring the hydrogen ion concentration with the aid of electrodes made of antimony, tungsten or other metals or their alloys that can be oxidized by dissolved oxygen | |
| DE589922C | Device for Pó� measurement according to the compensation method with a voltage divider as a measuring bridge, against which the voltage of the electrode system is compensated |