Patent No. EP4224991 (titled "Induction Heating Assembly For A Vapour Generating Device") was filed by Japan Tobacco on Dec 20, 2018. The application was issued on Oct 2, 2024.

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 |
|---|---|---|
| NICOVENTURES | Jul 1, 2025 | DEHNS |
| PHILIP MORRIS | Jun 20, 2025 | HGF |
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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