Patent No. EP2712511 (titled "An Electrically Heated Smoking System Having A Liquid Storage Portion") was filed by Philip Morris on Apr 22, 2009. The application was issued on Jun 9, 2021.

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 |
|---|---|---|
| NERUDIA | Mar 9, 2022 | MEWBURN ELLIS |
| IMPERIAL TOBACCO | Mar 9, 2022 | MEWBURN ELLIS |
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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