Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302954 | Solidifying and hardening accelerator for hydraulic binders | Rudolf Lunkenheimer, Johannes Breker, Istvan Potencsik, Horst-Dieter Altmann | 2001-10-16 |
| 5660625 | Use of basic aluminium sulphates as low-alkali set accelerators for cement | Otto Helmboldt, Istvan Potencsik, Johannes Breker, Detlev Roggenkamp | 1997-08-26 |