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:
Sep. 10, 2013
Filed:
Mar. 16, 2011
Edward T. Wei, Berkeley, CA (US);
Edward T. Wei, Berkeley, CA (US);
Other;
Abstract
Short-chain 2- to 3-carbon alcohols are used as solvents for cooling agents in the preparation of topical therapeutic and cosmetic formulations. Some of these alcohols, especially ethanol, inhibit the ability of the cooling agent to activate its target receptor. In one embodiment of this invention, (R)-1,2-propanediol is used as an alcoholic solvent for the topical delivery of cooling agents to biological surfaces. This propanediol enantiomer has a minimum inhibitory effect on cooling with respect to standard 2- to 3-carbon alcoholic solvents, and functions to substantially protect the agent's cooling activity from inhibition when in the presence of a short-chain alcohol.