Invention Grant
- Patent Title: Smoking article with bypass channel
- Patent Title (中): 带旁路通道的吸烟用品
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Application No.: US11643868Application Date: 2006-12-22
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Publication No.: US07987856B2Publication Date: 2011-08-02
- Inventor: Shalva Gedevanishvili , Mohammad R. Hajaligol
- Applicant: Shalva Gedevanishvili , Mohammad R. Hajaligol
- Applicant Address: US VA Richmond
- Assignee: Philip Morris USA Inc.
- Current Assignee: Philip Morris USA Inc.
- Current Assignee Address: US VA Richmond
- Agency: Buchanan Ingersoll & Rooney PC
- Main IPC: A24D3/06
- IPC: A24D3/06

Abstract:
A smoking article having a tobacco rod of a smokable material and a filter system attached to the tobacco rod of smokable material. The filter system includes a first filter portion and a second filter portion, the second filter portion concentrically positioned with respect to the first filter portion and having a lower resistance to draw than the first filter portion during an initial puff on the smoking article. The second filter portion closes upon contact with the mainstream smoke of the initial puff, such that after the initial puff, the first filter portion has the lower resistance to draw.
Public/Granted literature
- US20070169785A1 Smoking article with bypass channel Public/Granted day:2007-07-26
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