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The patent EP3562328 was granted to Philip Morris on Feb 5, 2025. The application was originally filed on Dec 20, 2017 under application number EP17821892A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
A sheet for an aerosol-generating substrate of an aerosol-generating article, the sheet comprising fibrous material, one or more nicotine salts and a binder, wherein at least about 20% by weight of the one or more nicotine salts are monoprotic. The sheet is used to form an aerosol-generating rod that can be heated to generate an inhalable nicotine-containing aerosol.

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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