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The patent EP3250522 was granted to Knauf Insulation on Mar 9, 2022. The application was filed on Jan 27, 2016 under application number EP16701785A. The patent is currently recorded with a legal status of "Revoked".
A submerged combustion melter for melting vitreous materials, comprising a melter section and an afterburner section, wherein the melter section has a cylindrical shape and the afterburner section is integrated into the melter section, allowing for efficient combustion of fuel and exhaust gases while minimizing energy consumption and environmental emissions.

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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