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:
May. 14, 2019
Filed:
Dec. 30, 2004
Applicants:
Munmaya K. Mishra, Richmond, VA (US);
Jay a Fournier, Richmond, VA (US);
Kathy E. Paine, Midlothian, VA (US);
Inventors:
Munmaya K. Mishra, Richmond, VA (US);
Jay A Fournier, Richmond, VA (US);
Kathy E. Paine, Midlothian, VA (US);
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24B 15/28 (2006.01);
U.S. Cl.
CPC ...
A24B 15/283 (2013.01);
Abstract
Improved delivery of additives is provided through encapsulation. The encapsulated additives can be formed by encapsulating additives using co-ionic cross-linking, in-situ overcoating, and/or step-growth overcoating. By encapsulating additives, additives can be made heat and moisture stable and migration and/or loss of the additives within a cigarette, such as an activated carbon containing cigarette, can be reduced.