Invention Grant
- Patent Title: Smoking articles with significantly reduced gas vapor phase smoking constituents
- Patent Title (中): 吸烟制品具有显着降低的气相吸烟成分
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Application No.: US13072244Application Date: 2011-03-25
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Publication No.: US09138016B2Publication Date: 2015-09-22
- Inventor: Zhaohua Luan , Mohammad R. Hajaligol , Randall E. Baren , Darin S. Colassaco , Firooz Rasouli
- Applicant: Zhaohua Luan , Mohammad R. Hajaligol , Randall E. Baren , Darin S. Colassaco , Firooz Rasouli
- 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: A24D3/04
- IPC: A24D3/04

Abstract:
A smoking article having a tobacco rod, which is adapted to produce mainstream smoke, and a filter attached to said tobacco rod. A permeable wrapping paper circumscribes the tobacco rod and the filter. The filter has an upstream end portion and a downstream end portion, and includes a flow restricting segment of smoke impermeable material, which includes at least one open flow passage therethrough to deliver mainstream smoke, and a cavity downstream of the flow restricting segment. The smoking article also includes at least one ventilation zone upstream of the flow restricting segment.
Public/Granted literature
- US20120048286A1 SMOKING ARTICLES WITH SIGNIFICANTLY REDUCED GAS VAPOR PHASE SMOKING CONSTITUENTS Public/Granted day:2012-03-01
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