Aerosol Generation Device And Set

Patent No. EP4337043 (titled "Aerosol Generation Device And Set") was filed by Japan Tobacco on May 9, 2022. The application was issued on Feb 19, 2025.

Patent Summary

Aerosol generation device for e-cigarettes and replacement cartridges that improves heating uniformity and aerosol production. The device has a narrowed internal surface in the cartridge receptacle that compresses the airflow path through the cartridge. This reduces cold spots and improves heat distribution when the cartridge is inserted, compared to a straight receptacle. The protrusions narrow the path and force the air to flow through the cartridge material more evenly, improving vaporization.

Patent Family

Patent Family

Patent Oppositions (2)

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
NICOVENTURESNov 19, 2025DEHNS
PHILIP MORRISNov 14, 2025HGF

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.

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EP4337043

JAPAN TOBACCO
Application Number
EP22728194A
Filing Date
May 9, 2022
Status
Granted And Under Opposition
Jan 17, 2025
Publication Date
Feb 19, 2025