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:
Feb. 03, 2009
Filed:
Mar. 21, 2006
Ho Sik Rho, Yongin-si, KR;
Heung Soo Baek, Anyang-si, KR;
Jeong A. Lee, Yongin-si, KR;
Chang Man Park, Seoul, KR;
Duck Hoo Kim, Seoul, KR;
Ih Soop Chang, Yongin-si, KR;
OK Sub Lee, Anyang-si, KR;
Ho Sik Rho, Yongin-si, KR;
Heung Soo Baek, Anyang-si, KR;
Jeong A. Lee, Yongin-si, KR;
Chang Man Park, Seoul, KR;
Duck Hoo Kim, Seoul, KR;
Ih Soop Chang, Yongin-si, KR;
Ok Sub Lee, Anyang-si, KR;
Amorepacific Corporation, Seoul, KR;
Abstract
The present invention provides hydroxamic acid derivatives represented by the formula, having antioxidation, collagen biosynthesis promotion and skin pore contraction effects, and a method for preparation thereof. Further, the present invention provides skin-care external compositions for preventing skin aging, containing said hydroxamic acid derivatives represented by the formula as an active ingredient.