Microporous materials in cigarette filter construction

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United States of America Patent

PATENT NO 4729391
SERIAL NO

06798227

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Flavor-carrying microporous polymer material is incorporated with a cigarette filter to release flavor into the smoke-stream during smoking of the cigarette.

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Patent Owner(s)

  • R. J. REYNOLDS TOBACCO COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Roberts, Donald L Winston-Salem, NC 19 3142
Woods, Donna K Winston-Salem, NC 5 494

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