IP Library › Granted Patent US 12,295,408
Granted Patent B2
US 12,295,408 · App. 18/321,383 · Granted May 13, 2025

Smoking article filter and insertable filter unit therefor

Inventors: Graham Penrose (Milton Keynes, GB); Michael Malthouse (Milton Keynes, GB); David Wake (Milton Keynes, GB); Gary Fulcher (Milton Keynes, GB); Michael Simpson (Sibuya-ku, JP); Aaron Brookbank (London, GB); Gordon Grierson (London, GB); Jon Hindley (London, GB); John Sampson (London, GB); Rabya Khan-Dar (London, GB); Karl Kaljura (London, GB); Lean Ho Ong (London, GB); John Richardson (London, GB); John Major (London, GB); Richard Young (London, GB)
Assignee: NICOVENTURES TRADING LIMITED
A24D3/04A24D3/048A24D3/061A24D3/14
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Quick Facts
Patent No.
US 12,295,408
App. No.
18/321,383
Granted
May 13, 2025
Kind
B2
Abstract

A smoking article filter includes a recess to receive a filter insert unit. The filter insert unit is secured to the filter once inserted. The filter and the filter insert unit may include additives such as flavourants, colourants or sorbents.

Claims (12)

1. An insertable filter unit for a heat-not-burn product comprising a recess to receive the insertable filter unit, wherein the insertable filter unit comprises a smoke modifying substance that comprises a flavourant comprising tobacco, the insertable filter unit also comprising filtration material.

2. The insertable filter unit according to claim 1 , wherein the tobacco is in granule form.

3. The insertable filter unit according to claim 1 , comprising a thin insertable part, arranged to be inserted into the recess, and a thicker non-insertable part.

4. The insertable filter unit according to claim 1 , comprising retaining means to retain the insertable filter unit in the recess.

5. The insertable filter unit according to claim 4 , wherein the retaining means comprises mechanical retaining means.

6. The insertable filter unit according to claim 5 , wherein the mechanical retaining means comprises a screw thread.

7. The insertable filter unit according to either claim 5 , wherein the mechanical retaining means comprises an insertable spike.

8. The insertable filter unit according to claim 4 , wherein the retaining means comprises an adhesive.

9. The insertable filter unit according to claim 1 , formed from a manually compressible material.

10. The insertable filter unit according to claim 1 , having an end-on cross-sectional shape arranged to increase the surface area of the insertable filter unit.

11. The insertable filter unit according to claim 1 , comprising a colourant.

12. The insertable filter unit according to claim 1 , wherein the flavourant additionally comprises at least one of: menthol, lemon, orange, lime, coffee, and/or tea.

Priority Claims (2)
GB GB1110863 · Jun 27, 2011 · national
GB GB1209426 · May 28, 2012 · national
Continuity (3)
Continuation 16933558 · Jul 20, 2020
Continuation 14129879
Related Publication 20230292821A1 · Sep 21, 2023
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