| Patent Number | Title | Applicant | Opposition Date |
|---|---|---|---|
| EP2550243 | Refractory Composition And Process For Forming Article Therefrom | STELLAR MATERIALS, INC. | Sep 17, 2020 |
| EP3067387 | Thermoplastic Moulding Materials | LANXESS DEUTSCHLAND GMBH | May 29, 2019 |
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