Dynamic Output Power Management For Electronic Smoking Device

Patent No. EP4183282 (titled "Dynamic Output Power Management For Electronic Smoking Device") was filed by Fontem Ventures on Dec 25, 2014. The application was issued on Dec 17, 2025.

Patent Summary

An electronic smoking device comprises an atomizer with a heating element, a power source, a controller, and a first switch connecting the power source to the controller. A voltage detector is configured to detect at least one of the power source's output voltage, a voltage drop across a reference element connectable in series with the heating element, or a voltage drop across the heating element. The controller dynamically adjusts the electrical power supplied from the power source to the heating element based on the reference element's resistance value and the voltage detector's results. This management unit ensures consistent aerosol generation and vaporization by compensating for decreasing battery capacity and varying heating element resistances, such as those found in carbon fiber bundles.

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Patent Oppositions (3)

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.

CompanyOpposition DateRepresentative
JT INTERNATIONAL S.A.Sep 16, 2026GILL JENNINGS & EVERY
NICOVENTURESSep 16, 2026D YOUNG
PHILIP MORRISSep 16, 2026HARRISON GODDARD FOOTE

Dossier Documents

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.

  • Date

    Description

EP4183282

FONTEM VENTURES
Application Number
EP23150527A
Filing Date
Dec 25, 2014
Status
Granted And Under Opposition
Nov 14, 2025
Publication Date
Dec 17, 2025