Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894603 | Method and apparatus for analysis of gas by means of absorption frequency regulation | Lutz-Michael Berger, Helmut Giraud, Gunther Krieg, Horst Gunther, Gerhard Schmitt | 1990-01-16 |