Patent No. EP3508084 (titled "Inhalation Device Including Substance Usage Controls") was filed by Japan Tobacco on Aug 23, 2011. The application was issued on Oct 4, 2023.

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 3, 2024 | D YOUNG |
| PHILIP MORRIS | Jun 28, 2024 | GRUNECKER |
| PHILIP MORRIS | Jun 28, 2024 | GRUNECKER PATENT |
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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