Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684116 | Titanium dioxide/silicon dioxide coprecipitates and titanium dioxide/zirconium dioxide coprecipitates as polycondensation catalysts for polyesters and copolyesters | Michael Martl, Gerriet Oberlein, Klaus Haferland, Bertram Böhringer, Ulrich Berger | 1997-11-04 |