Patent No. EP3282871 (titled "Device And Method For Controlling An Electrical Heater To Limit Temperature According To Desired Temperature Profile Over Time") was filed by Philip Morris on Apr 11, 2016. The application was issued on Mar 20, 2024.

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 | Mar 12, 2020 | GILL JENNINGS & EVERY |
| NICOVENTURES | Mar 12, 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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