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Aerosol-Generating Article - EP3818883
The patent EP3818883 was granted to Kt&G on Mar 5, 2025. The application was filed on Nov 13, 2019 under application number EP19887859A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP3818883
- Application Number
- EP19887859A
- Filing Date
- Nov 13, 2019
- Status
- Granted And Under Opposition
- Jan 31, 2025
- Publication Date
- Mar 5, 2025
- External Links
- Slate, Register, Google Patents
Patent Summary
Aerosol generating articles with adjustable aerosol flow resistance through a channel-based filter structure. The articles feature a front-end filter segment with a channel that connects to a rear-end filter segment, both containing a filter structure. The channel's cross-sectional area ratio determines the aerosol flow resistance, with the ratio being proportional to the channel and filter structure areas. This allows the aerosol flow resistance to be precisely controlled by adjusting the channel's cross-sectional area relative to the filter structure's area.
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.
Patent Citations (36) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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