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:
Aug. 07, 2012
Filed:
Nov. 15, 2002
Applicants:
Georges Wagnieres, Lutry, CH;
Norbert Lange, Nyon, CH;
Nora Dögnitz, Lausanne, CH;
Denis Salomon, Petit-Lancy, CH;
Hubert Van Den Bergh, St-Sulpice, CH;
Inventors:
Georges Wagnieres, Lutry, CH;
Norbert Lange, Nyon, CH;
Nora Dögnitz, Lausanne, CH;
Denis Salomon, Petit-Lancy, CH;
Hubert Van Den Bergh, St-Sulpice, CH;
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for hair removal from a skin area by selective photo-inactivation of the pilo-sebaceous apparatus using derivatives of ALA with alkylene-glycol chains. Selectivity of the method is further enhanced by treatment of the epidermis by agents reducing PpIX levels in the epidermis. Side effects are diminished by using short drug/light intervals.