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. 08, 2011
Filed:
Dec. 29, 2009
Wei-chuan Tsai, Chiayi, TW;
Chen-yin Chen, Taichung, TW;
Ming-yi Chiu, Taipei, TW;
Yi-fan Ling, Yuanlin Township, Changhua County, TW;
Nai-hsuan Hsu, Jhonge, TW;
Wei-Chuan Tsai, Chiayi, TW;
Chen-Yin Chen, Taichung, TW;
Ming-Yi Chiu, Taipei, TW;
Yi-Fan Ling, Yuanlin Township, Changhua County, TW;
Nai-Hsuan Hsu, Jhonge, TW;
Corum Inc., Taipei, TW;
Abstract
The present invention discloses compounds with a carboxyl acid group and an amide group which also containing the tertiary amino groups. The carboxyl acid group having a partial negative charge can attract the tertiary amino group with each other to form a quaternary ammonium salt structure, so that the compounds are easy to dissolve in water. Moreover, these compounds having a mushroom tyrosinase-inhibition effect and have the potential to use in the cosmetics for skin whitening.