Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430438 | Enamel frit and a process for two-layer and multi-layer one-fire enamelling | Otto Krist, Jozef Luypaert | 1984-02-07 |
| 4271130 | Process for the preparation of zeolite A from kaolin | Robert Endres, Manfred Mansmann, Lothar Puppe | 1981-06-02 |