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:
Jul. 23, 2013
Filed:
Dec. 12, 2008
Thomas Glanzmann, Lausanne, CH;
Jérôme Barge, Romanel-sur-Lausanne, CH;
Georges Wagnieres, Lutry, CH;
Thomas Glanzmann, Lausanne, CH;
Jérôme Barge, Romanel-sur-Lausanne, CH;
Georges Wagnieres, Lutry, CH;
Photoderma SA, Ecublens, CH;
Abstract
The present invention relates to photosensitizer compounds for use in cosmetic and therapeutic applications of photodynamic therapy. The compounds of the present invention are designed for topical application and are characterized by a low permeability to the stratum corneum (the outer skin layer of an individual) and/or a low allergenic potential. Surprisingly, such compounds have beneficial properties in the treatment of certain diseases and lack the undesired damages to healthy skin entailed by prior art compounds. ALA (5-aminolevulinic acid)-esters of body-owned, natural compound such as aminoacids, steroids, carbohydrates, alcohols are preferred examples of photosensitizers of the present invention. The compounds of the present invention are used in the treatment of skin diseases such as psoriasis, sebaceous glands related conditions including acne, seborrhoic dermatitis, rosacea, skin cancer and precancer, as well as in cosmetic hair removal.