Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859635 | Optical fluorophosphate glass having anomalous positive partial dispersion and process for its production | Norbert Meinert, Rainer Dreuth, Henning Franek | 1989-08-22 |
| 4857487 | Optical fluorophosphate glasses possessing positive anomalous partial dispersion and improved physico-chemical properties, and a process for their preparation | Heinz Broemer, Norbert Meinert | 1989-08-15 |
| 4825697 | Acceleration sensor | — | 1989-05-02 |