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. 11, 2003
Filed:
Nov. 20, 2000
Applicant:
Inventors:
Craig Lesser, Middletown, CA (US);
Reid W. Von Borstel, Potomac, MD (US);
Assignee:
Filligent Limited, Central, HK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/04 ;
U.S. Cl.
CPC ...
A24D 3/04 ;
Abstract
A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil. The porous substrate can further comprise sodium pyroglutamate.