Patent No. EP3250102 (titled "Surface Cleaning Head Including Openable Agitator Chamber And Removable Agitators For Use Therein") was filed by Sharkninja Operating on Jan 28, 2016. The application was issued on Jan 26, 2022.

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 |
|---|---|---|
| JIANGSU MIDEA CLEANING APPLIANCES | Oct 26, 2022 | RGTH |
| VAX TECHTRONIC CORDLESS GP | Oct 26, 2022 | FORRESTERS |
| JIAO | Jul 11, 2022 | STRACHAN |
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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