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:
Nov. 02, 2021
Filed:
Oct. 10, 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:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/06 (2006.01); A24D 3/16 (2006.01); A24D 3/02 (2006.01); A24D 3/12 (2006.01);
U.S. Cl.
CPC ...
A24D 3/061 (2013.01); A24D 3/0275 (2013.01); A24D 3/06 (2013.01); A24D 3/12 (2013.01); A24D 3/16 (2013.01);
Abstract
The invention relates to an additive releasing material comprising a carrier material having on its surface one or more additives, the additive releasing material having a desorption temperature selected to allow controlled temperature-dependent release of the additive(s). The invention further relates to filters and smoking articles including such additive releasing materials, and to methods for preparing the additive releasing materials.