Patent No. EP3873250 (titled "Smoking Substitute Consumable") was filed by Imperial Tobacco on Oct 25, 2019. The application was issued on Nov 23, 2022.

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 | Aug 23, 2023 | DOLPHIN |
| JT | Aug 22, 2023 | GILL JENNINGS & EVERY |
| JAPAN TOBACCO | Aug 22, 2023 | GILL JENNINGS & EVERY |
| PHILIP MORRIS | Aug 22, 2023 | 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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