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:
Nov. 20, 2014
Applicant:
British American Tobacco (Investments) Limited, London, GB;
Inventor:
Peter Branton, London, GB;
Assignee:
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/20 (2006.01); A24D 3/06 (2006.01); A24D 3/16 (2006.01); B01J 20/30 (2006.01); B01J 20/28 (2006.01); A24D 3/02 (2006.01); A24D 3/04 (2006.01); B01J 20/32 (2006.01);
U.S. Cl.
CPC ...
A24D 3/062 (2013.01); A24D 3/0287 (2013.01); A24D 3/048 (2013.01); A24D 3/061 (2013.01); A24D 3/067 (2013.01); A24D 3/16 (2013.01); A24D 3/163 (2013.01); A24D 3/166 (2013.01); B01J 20/20 (2013.01); B01J 20/2808 (2013.01); B01J 20/28019 (2013.01); B01J 20/28083 (2013.01); B01J 20/3085 (2013.01); B01J 20/3204 (2013.01);
Abstract
There is provided an adsorbent material comprising a porous carrier material having pores with a diameter greater than 20 nm and carrying additive particles on its external surface, wherein the additive particles comprise an additive and have a diameter of greater than 20 nm. There is also provided a smoking article filter element comprising such an adsorbent material, a smoking article comprising such an adsorbent material, and a method of preparing such an adsorbent material.