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

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
NICOVENTURESJun 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

  • Get instant alerts for new documents

EP3818848

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