Patent No. EP4018858 (titled "Electronic Smoking Article With Haptic Feedback") was filed by RAI Strategic on Jul 16, 2014. The application was issued on Dec 6, 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 |
|---|---|---|
| PHILIP MORRIS | Sep 4, 2024 | HGF |
| IMPERIAL TOBACCO | Jun 21, 2024 | HASELTINE LAKE KEMPNER |
| IMPERIAL TOBACCO | Jun 21, 2024 | 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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