The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2010
Filed:
Oct. 19, 2005
Applicants:
Lixin L. Xue, Midlothian, VA (US);
Kent B. Koller, Chesterfield, VA (US);
Inventors:
Lixin L. Xue, Midlothian, VA (US);
Kent B. Koller, Chesterfield, VA (US);
Assignee:
Phillip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface-modified adsorbent comprises a reagent on a porous carrier. Preferred porous carriers are adsorbent carbons such as activated carbon, silica gels, aluminas, polyester resins, zeolites or zeolite-like materials, and mixtures thereof. Preferred reagents are 2-hydroxymethylpiperidine (2-HMP) or a 2-HMP analogue. Surface modified adsorbents can be incorporated into cigarettes, preferably in an amount effective to reduce the concentration of one or more constituents of cigarette smoke.