Patent No. EP4474597 (titled "Walking Apparatus For Use In Liquid, And Swimming Pool Cleaning Robot") was filed by Xingmai Innovation Technology Suzhou on Apr 27, 2023. The application was issued on Jul 23, 2025.
A pool cleaning robot that can transition between above and below water surfaces to clean all areas of a pool. The robot features a moving device with sensors that enable position adjustment and depth control, allowing it to switch between surface and underwater cleaning modes. The robot's control system determines the optimal cleaning path based on the pool's configuration and the user's cleaning objectives.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_0001177/2025 | Oct 28, 2025 | Xingmai Innovation Technology Suzhou | Infringement |
| UPC_CFI_0000621/2026 | Oct 28, 2025 | Xingmai Innovation Technology Suzhou | Counter Claim For Revocation |

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 |
|---|---|---|
| AIPER INTELLIGENT | Feb 16, 2026 | FUCHS PATENTANWALTE PARTNERSCHAFT MBB |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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