Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458916 | Hydrophobicization of pyrogenic silica | Gunter Kratel, Ernst Muhlhofer | 1995-10-17 |
| 5372795 | Process for hydrophobicizing of pyrogenic silica | Ernst Muhlhofer, Gunter Kratel | 1994-12-13 |
| 4878693 | Sheet material carrier | — | 1989-11-07 |