Tobacco smoke filter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20050166933A1
SERIAL NO

10946440

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A tobacco smoke filter comprising a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye. A method of making a first tobacco smoke filter segment, comprising the steps of providing one or more than one substance; producing a mixture of cellulose fiber, sodium sulfate, chlorine water and a substance; heating the mixture for a sufficient time at one or more than one temperature sufficient to covalently link the substance to the cellulose fiber; and forming the cellulose fiber with covalently bound substance into the first tobacco smoke filter segment. The substance can be a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye.

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Patent Owner(s)

Patent OwnerAddress
FILLIGENT LIMITEDHONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lesser, Craig A Malibu, CA 2 23
Von, Borstel Reid W Potomac, MD 110 1215

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