Patent No. EP3075271 (titled "Electronic Smoking Device With Liquid Reservoir Including An Actuator") was filed by Fontem on Apr 2, 2015. The application was issued on Sep 14, 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 |
|---|---|---|
| JAPAN TOBACCO | Apr 18, 2019 | LANG |
| NICOVENTURES | Apr 18, 2019 | 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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