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1969-02-11 |
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2008-05-21 |
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2008-05-21 |
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Cigarette filter comprising a degradable fiber
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2008-10-14 |
2008-11-19 |
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Smoking article
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2008-11-20 |
2012-02-21 |
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Carbonaceous material having modified pore structure
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2008-11-20 |
2013-08-20 |
R. J. Reynolds Tobacco Company |
Adsorbent material impregnated with metal oxide component
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2009-11-11 |
2015-04-07 |
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Filter element comprising smoke-altering material
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2010-01-27 |
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Apparatus and associated method for forming a filter component of a smoking article
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2010-05-07 |
2011-11-10 |
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Filtered Cigarette With Modifiable Sensory Characteristics
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Filter additive
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Filter element comprising multifunctional fibrous smoke-altering material
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2011-04-08 |
2024-04-16 |
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Multi-segment filter element including smoke-altering flavorant
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2011-04-08 |
2020-04-07 |
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Filtered cigarette comprising a tubular element in filter
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2011-09-23 |
2018-09-04 |
R.J. Reynolds Tobacco Company |
Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses
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2014-05-23 |
2015-11-26 |
Greenbutts Llc |
Biodegradable cigarette filter tow and method of manufacture
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2022-03-22 |
Acetate Int Llc |
Estopa de acetato de celulosa con bajo dpf y bajo contenido de dioxido de titanio.
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2022-08-16 |
Acetate Int Llc |
Estopa de acetato de celulose com alto dpf e baixo teor de dióxido de titânio
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