Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8957137 | Acid-resistant, hydraulically setting masses | Harald Zeh, Jörgen Bezler, Armin Hoffman, Hermann Lutz | 2015-02-17 |
| 8951604 | Surface treatment of cementitious substrates | Armin Hoffmann, Juergen Bezler | 2015-02-10 |