Patent No. EP4259592 (titled "Admixture For Fluidifying A Cementitious Composition With Reduced Cement Content") was filed by Chryso on Dec 10, 2021. The application was issued on Nov 27, 2024.

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| Company | Opposition Date | Representative |
|---|---|---|
| SIKA TECHNOLOGY | Jul 30, 2025 | SIKA PATENT ATTORNEYS |
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