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US 2012/0067359 A1Published application
Tobacco smoke filter
OwnerPaul Francis Clarke, Anthony Denis McCormick +2inventors
InventorsPaul Francis Clarke, Anthony Denis McCormick, Tom Cravotta, Jack Rothenhoefer
Life of this patent
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Abstract
A tobacco smoke filter or filter element comprising: a tobacco smoke filtering material including paper; and a flavour enhancing additive.
Claims21
1-26. (canceled)
A tobacco smoke filter or filter element comprising a tobacco smoke filter including paper and a flavour enhancing additive selected from the group consisting of an alicyclic lactone, an aromatic lactone, an aromatic ketone, and a secondary alcohol or ester thereof, and a phthalide.
A filter or filter element comprising:
- a tobacco smoke filtering material and a flavour enhancing additive selected from the group consisting of an alicyclic lactone, an aromatic lactone, an aromatic ketone, and a secondary alcohol or ester thereof, and a phthalide.
Dependencies are inferred from the claim text.