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. 19, 2026
Filed:
Dec. 08, 2022
Applicant:
Philip Morris Products S.a., Neuchatel, CH;
Inventors:
Ivan Prestia, Longara di Calderara di Reno, IT;
Alberto Bonici, Modena, IT;
Emeric Grandjean, Lausanne, CH;
Edoardo Montanari, Bologna, IT;
Ivan Chiarini, Bazzano, IT;
Michele Del Borrello, Vaso, IT;
Assignee:
Philip Morris Products S.A., Neuchâtel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 1/02 (2006.01); A24D 3/04 (2006.01);
U.S. Cl.
CPC ...
A24D 1/02 (2013.01); A24D 3/04 (2013.01);
Abstract
A method for enhancing hardness of a filter for a smoking article includes disposing a plug wrap about filter material; and applying a hardness-enhancing coating composition to the plug wrap after the plug wrap has been disposed about the filter material to enhance the hardness of the filter.