Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904291 | Process for the manufacture of open porous sintered bodies being prepronderantly composed of glass ceramics | Friedrich Siebers, Werner Kiefer | 1990-02-27 |
| 4588540 | Method of manufacturing porous sintered inorganic bodies with large open pore volume | Werner Kiefer | 1986-05-13 |
| 4404291 | Low-density, open-pore molded inorganic body with a homogeneous pore distribution | Werner Kiefer | 1983-09-13 |