Patent No. EP2982255 (titled "Inhalation Device Including Substance Usage Controls") was filed by Japan Tobacco on Aug 23, 2011. The application was issued on May 22, 2019.

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 |
|---|---|---|
| PHILIP MORRIS | Feb 24, 2020 | HGF |
| LIPPERT STACHOW PATENTANWALTE RECHTSANWALTE | Feb 21, 2020 | - |
| NICOVENTURES | Feb 21, 2020 | 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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