Patent No. EP4108105 (titled "Nicotine Pouch Product") was filed by Philip Morris on Jun 5, 2020. The application was issued on Jun 4, 2025.
A nicotine pouch product comprising a pouch composition and a pouch membrane enclosing the composition, where the composition contains at least one water-insoluble fiber, water, and nicotine, and the membrane contains additional nicotine. The pouch membrane is designed to release a portion of the nicotine during the initial minutes of use, providing rapid craving relief. The pouch composition can contain sugar alcohols, flavorings, and pH-regulating agents, and the membrane can be made from cellulose-based fibers.

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 |
|---|---|---|
| IMPERIAL TOBACCO | Mar 4, 2026 | ELKINGTON AND FIFE |
| NICOVENTURES | Mar 3, 2026 | D YOUNG |
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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