Patent No. EP3928646 (titled "Vaporization Device Systems And Methods") was filed by Juul Labs on Dec 23, 2014. The application was issued on Mar 26, 2025.

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 | Dec 24, 2025 | D YOUNG |
| STRAWMAN | Dec 23, 2025 | J A KEMP |
| PHILIP MORRIS | Dec 22, 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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