Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8035816 | Method and apparatus for measuring the optical absorption of samples | Helmut Dandl, Hans Krause | 2011-10-11 |
| 4996876 | Microrheoscopic detector for gas flows | Hans Krause | 1991-03-05 |
| 4938256 | Apparatus for the production of particular concentrations of gaseous materials as well as for mixing various gaseous materials in a specified ratio | Gerhard Wiegleb | 1990-07-03 |
| 4674884 | Cell for a gas analyzer | Helmut Heimel, Rudi Ross, Gerhard Wiegleb | 1987-06-23 |
| 4201915 | Pneumatic infrared radiation detector having a hermetically sealed chamber and a window | Gunter Schunk | 1980-05-06 |