Aerosol-generating article having a liquid indicator

US2025106948A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025106948-A1
Application numberUS-202418971821-A
CountryUS
Kind codeA1
Filing dateDec 6, 2024
Priority dateMay 27, 2016
Publication dateMar 27, 2025
Grant date

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An aerosol-generating article may comprise a liquid storage portion containing a liquid aerosol-forming substrate, and a hydrochromic material provided on the liquid storage portion. The hydrochromic material has a first colour when in the presence of or when in contact with the liquid aerosol-forming substrate and a second colour when in the absence of or when not in contact with the liquid aerosol-forming substrate. An aerosol-generating system may comprise the aerosol-generating article, an aerosol-generating element, and an aerosol-generating device. An aerosol-generating device may comprise an electrical power supply, an electronic photosensor, and a controller configured to control a supply of electrical power from the electrical power supply based on a value of an optical property sensed with the electronic photosensor.

First claim

Opening claim text (preview).

1 . An aerosol-generating article comprising: a storage portion containing an aerosol-forming substrate; and a hydrochromic material configured to indicate an amount of the aerosol-forming substrate in the storage portion.

Assignees

Inventors

Classifications

  • Control systems for instantaneous steam boilers · CPC title

  • with water in reservoirs · CPC title

  • including means for displaying information, e.g. for advertising (B67D7/425 takes precedence) · CPC title

  • Devices with integrated user interfaces · CPC title

  • Control or monitoring · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2025106948A1 cover?
An aerosol-generating article may comprise a liquid storage portion containing a liquid aerosol-forming substrate, and a hydrochromic material provided on the liquid storage portion. The hydrochromic material has a first colour when in the presence of or when in contact with the liquid aerosol-forming substrate and a second colour when in the absence of or when not in contact with the liquid ae…
Who is the assignee on this patent?
Altria Client Services Llc
What technology area does this patent fall under?
Primary CPC classification A24F40/53. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Thu Mar 27 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).