Cigarette filter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5360023
SERIAL NO

07898111

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Cigarettes include a filter element which have a gathered web of paper incorporating a carbonaceous material. The paper is gathered so as to include a plurality of longitudinally extending channels, and the channels provide a cross-sectional void area of about 5 to about 30 percent of the filter element.

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Patent Owner(s)

  • R. J. REYNOLDS TOBACCO COMPANY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blakley, Richard L Pfafftown, NC 9 1079
Gentry, Jeffery S Pfafftown, NC 9 1351
Perfetti, Thomas A Winston-Salem, NC 33 3341
Shelar, Gary R Greensboro, NC 24 3278
Worrell, Gary W Tobaccoville, NC 3 404

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