Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692563 | Magnesium-ammonium-phosphates cements, the production of the same and the use thereof | — | 2004-02-17 |
| 6678694 | Indexed, extensible, interactive document retrieval system | Joerg Thielke, Christoph Holz | 2004-01-13 |