Patent No. EP4244021 (titled "Abrasive Material, Accessories For A Tool Containing Such Abrasive Material And Method Of Manufacturing Such Abrasive Material") was filed by Maris on Nov 15, 2021. The application was issued on May 29, 2024.
An abrasive material comprises a first side and an opposite side, featuring hairs or fibers on the first side. These hairs are manufactured from a double-layer fabric by weaving or stitching a wire in a W-connection through the top and bottom layers, then cutting the connection between said layers to create the hairs. The hairs are post-treated via heat or chemical processes to permanently alter their shape and enhance resilience. Additionally, the hairs are equipped with abrasive particles. The material is utilized in three-dimensional tool accessories, such as cleaning, sanding, or polishing pads and roller brushes, designed for deep cleaning and polishing of stone, steel, wood, or plastic surfaces while resisting clogging.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_0001200/2026 | Apr 9, 2026 | Wish&Wash | Counter Claim For Revocation |
| UPC_CFI_0002068/2025 | Dec 19, 2025 | Wish&Wash | Infringement |

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| ECOCOAT | Feb 28, 2025 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
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