Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core

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United States of America Patent

PATENT NO 5622190
SERIAL NO

08339530

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Abstract

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A concentric smoking filter in which the peripheral filter medium is a fibrous tow, such as fibrous cellulose acetate tow, and the core filter medium is a web material, such as paper, loaded with carbon particles, is provided. The filter improves the taste, particularly, of 'ultra-light' cigarettes.

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Patent Owner(s)

Patent OwnerAddress
PHILIP MORRIS INCORPORATED120 PARK AVENUE NEW YORK NY 10017
PHILIP MORRIS PRODUCTS INC3601 COMMERCE ROAD RICHMOND VIRGINIA 23234 UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arterbery, Cynthia W Midlothian, VA 5 146
Callaham, W Timothy Richmond, VA 3 96
Keritsis, Gus D Richmond, VA 34 1571
Laslie, Donald E Midlothian, VA 4 110
Newman, Kenneth A Prince George, VA 10 212
Slagle, Roger S Chesterfield, VA 3 74
White, Jr Morris F Chesterfield, VA 3 96

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