Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632883 | Method and a device for detecting the oxygen content in gases | — | 1997-05-27 |
| 5595647 | Method for determining gas components and/or gas concentrations of gas mixture | Harald Neumann, Johann Riegel | 1997-01-21 |