Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9518307 | Method for the production of a refractory filter | Renate Jahre, Hans Riethmann, Mario Arruda, Antonio Cassara, Raphael Neto +3 more | 2016-12-13 |
| 8802003 | Method for the production of a refractory filter | Renate Jahre, Hans Riethmann, Mario Arruda, Antonio Cassara, Raphael Neto +3 more | 2014-08-12 |