Cigarette filter with scavenging effect on free radicals in cigarette smoke and its preparation method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 21, 2004
Grant Date -
Jun 20, 2002
app pub date -
Sep 25, 2001
filing date -
Oct 16, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cigarette filter that has a scavenging effect on smoking induced gas phase free radicals. The filter ingredients are comprised of proanthocyanidins and include, but are not limited to, extracts of barks of pine tree, extracts of cones of cypress trees, extracts of grape seeds, and any combination thereof. Also, vitamin C and other known antioxidant ingredients may be added.
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