Patent No. EP3832213 (titled "Vapour Extraction Device For Removing Cooking Vapour Downwards") was filed by Bruckbauer on Dec 18, 2018. The application was issued on Jun 15, 2022.
Extractor device with a single inflow opening for cooking vapors, where the opening is surrounded by the hotplate in a plan view and preferably covers the geometric centroid of the hotplate. The extractor device has a fan section with at least one fan, and a filter section with at least one filter arranged in an overpressure duct section. The filter section includes a filter seat with a sealing means for fluid-tight connection to the filter, and a closure flap for reversible closure against cooking vapors. The extractor device has a control unit for operating the fan, and a sensor device for detecting the filter and closure flap positions.

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.
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.