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:
Oct. 26, 2010
Filed:
May. 18, 2007
Stephen G. Zimmermann, Midlothian, VA (US);
James D. Baggett, Jr., Richmond, VA (US);
Stephen G. Zimmermann, Midlothian, VA (US);
James D. Baggett, Jr., Richmond, VA (US);
Philip Morris USA Inc., Richmond, VA (US);
Abstract
An apparatus and method for the process of applying palladium salts to tobacco cut filler and other smokable products so that polycyclic aromatic hydrocarbons (PAHs) can be reduced in both mainstream (MS) and sidestream (SS) cigarette smoke. The reduction in PAHs is observed in the total particulate matter (TPM) of the mainstream (MS) and sidestream (SS) smoke. Additionally, substantial reductions in heavy metals and Ames biological activity can be achieved when the palladium salt solution is applied and processed in accordance with the present invention. The present invention provides these improvements by using a preferred ratio of palladium (Pd) salt to Chloride (Cl) that is specifically designed to allow for high palladium solubility. Further, the present invention provides an apparatus and method for applying the palladium salt solution while minimizing the number of processing steps required.