Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917772 | Oven door assembly | Lothar Brandau | 1990-04-17 |
| 4916106 | Supported catalyst and process for its production for the reduction of nitrogen oxides | Frank Hutter, Helmut Schmidt | 1990-04-10 |
| 4866015 | Silica brick and process for producing same | Engelbert Overkott | 1989-09-12 |
| 4833115 | Ceramic honeycombed elongated catalyst carrier and method for production of same | Walter Hartmann, Martin Heumuller, Willi Kunkel | 1989-05-23 |