Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894603 | Method and apparatus for analysis of gas by means of absorption frequency regulation | Lutz-Michael Berger, Heimo BRETON, Gunther Krieg, Horst Gunther, Gerhard Schmitt | 1990-01-16 |
| 4849637 | Method and apparatus for continuously measuring the concentration of a gas component | Karlheinz Cerff, Gunther Krieg | 1989-07-18 |