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:
Mar. 12, 2019
Filed:
Feb. 08, 2017
Applicant:
Philip Morris Usa Inc., Richmond, VA (US);
Inventors:
Jay A Fournier, Richmond, VA (US);
John B. Paine, Midlothian, VA (US);
Douglas A. Fernandez, Richmond, VA (US);
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24B 15/28 (2006.01); A24B 15/30 (2006.01); A24B 15/42 (2006.01); A24D 1/02 (2006.01); A24D 1/00 (2006.01); C01B 25/45 (2006.01);
U.S. Cl.
CPC ...
A24B 15/282 (2013.01); A24B 15/28 (2013.01); A24B 15/287 (2013.01); A24B 15/30 (2013.01); A24B 15/42 (2013.01); A24D 1/002 (2013.01); A24D 1/02 (2013.01); C01B 25/451 (2013.01);
Abstract
A tobacco smoking mixture and/or a cigarette wrapper with high-temperature ammonia-release agents therein are provided, wherein the high-temperature ammonia-release agents are present in an amount effective to reduce the cytotoxicity of gas phase or particulate matter formed during smoking of the cigarette. The high-temperature ammonia-release agents can be formed by heating an aqueous mixture of an iron precursor compound, an ammonia source compound and an acid.