Aerosol Generation Apparatus Generating Aerosol Through Microwaves And Method Thereof

Patent No. EP3818848 (titled "Aerosol Generation Apparatus Generating Aerosol Through Microwaves And Method Thereof") was filed by Kt&G on May 20, 2020. The application was issued on Sep 17, 2025.

Patent Summary

An aerosol-generating device generates aerosols by non-contact microwave heating of a cigarette containing an aerosol-generating substrate. The device comprises a microwave generator, a microwave cavity with at least one aerosol outlet to accommodate the cigarette, and at least two microwave antennas located outside the cavity to transmit microwaves to a predetermined effective area range. To optimize heating and penetration depth, the device employs one of two configurations: (1) a microwave generator comprising at least two magnetrons producing microwaves of different frequencies, or (2) a microwave generator comprising one magnetron coupled with two or more microwave antennas of different lengths. The cavity may be cylindrical with a cross-sectional area narrowing opposite the cigarette insertion direction.

Patent Family

Patent family tree
Statuses, jurisdictions and citation links are shared on request.

Patent Oppositions

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
NICOVENTURES TRADING LIMITEDJun 16, 2026DEHNS

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

EP3818848

KT&G
Application Number
EP20816084A
Filing Date
May 20, 2020
Status
Granted And Under Opposition
Aug 15, 2025
Publication Date
Sep 17, 2025