Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7441380 | Tie anchor for a strip-type tension member | Hans-Peter Andra, Markus Maier | 2008-10-28 |
| 5718866 | Process for producing refractory materials | Hans J. Richter, Reiner Schober, Gerhard Putzky | 1998-02-17 |
| 5066624 | Refractory thixotropic vibration compound for the vibration lining of metallurgical vessels | Jürgen Baumann | 1991-11-19 |