Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702580 | Measuring sensor for determining the oxygen content of gas mixtures | Hermann Dietz, Werner Gruenwald, Claudio De La Prieta, Gert Lindemann, Carmen Schmiedel | 1997-12-30 |
| 5663226 | Rubber mixtures containing reinforcing additives, which additives include sulphur and silicon | Thomas Scholl, Hermann-Josef Weidenhaupt | 1997-09-02 |
| 5628848 | Process for the production of composite systems having at least two inorganic ceramic layers | Karl-Hermann Friese, Werner Gruenwald | 1997-05-13 |