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:
Sep. 14, 2017
Applicant:
Philip Morris Usa Inc., Richmond, VA (US);
Inventors:
Szu-Sung Yang, Midlothian, VA (US);
Lixin L. Xue, Midlothian, VA (US);
Jing C. Chang, Springfield, VA (US);
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/02 (2006.01); A24D 3/04 (2006.01); A24D 3/06 (2006.01); A24D 3/16 (2006.01);
U.S. Cl.
CPC ...
A24D 3/02 (2013.01); A24D 3/0204 (2013.01); A24D 3/04 (2013.01); A24D 3/063 (2013.01); A24D 3/163 (2013.01);
Abstract
A filter rod comprises a core of cellulose acetate fibers surrounded by a lofty porous network of charge retaining polymer fibers. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop.
Yang, Szu-Sung. (2019). Filter rod including electrostatically charged fibers (U.S. Patent No. 10226070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10226070
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile