Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6447590 | Treatment composition based on pregelatinized starch and process for applying it to a metal, especially steel, surface | Ronald Kefferstein | 2002-09-10 |
| 6309697 | Composition for temporarily protecting metal components from corrosion, its processes of preparation and of application, and metal components obtained from this composition | Ronald Kefferstein, Philippe Antoine | 2001-10-30 |
| 5296001 | Process for separating silicic compounds from cleaning baths and plant for its application | — | 1994-03-22 |