Patents by Inventor Yi-Fan Ling

Yi-Fan Ling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compound with carboxyl acid group and amide group and application thereof
    Patent number: 8053474
    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.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: November 8, 2011
    Assignee: Corum Inc.
    Inventors: Wei-Chuan Tsai, Chen-Yin Chen, Ming-Yi Chiu, Yi-Fan Ling, Nai-Hsuan Hsu
  • Compound With Carboxyl Acid Group And Amide Group And Application Thereof
    Publication number: 20110065954
    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.
    Type: Application
    Filed: December 29, 2009
    Publication date: March 17, 2011
    Applicant: CORUM INC.
    Inventors: Wei-Chuan Tsai, Chen-Yin Chen, Ming-Yi Chiu, Yi-Fan Ling, Nai-Hsuan Hsu
  • Ascorbic acid derivatives
    Patent number: 7741496
    Abstract: The present invention discloses the ascorbic acid derivatives. The inventive molecules that combine with one or two hydrophilic headgroups connected by a hydrophobic spacer can increase skin penetration.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: June 22, 2010
    Assignee: Corum Inc.
    Inventors: Wei-Chuan Tsai, Chen-Yin Chen, Ming-Yi Chiu, Yi-Fan Ling, Nai-Hsuan Hsu
  • Ascorbic Acid Derivatives
    Publication number: 20100056809
    Abstract: The present invention discloses the ascorbic acid derivatives. The inventive molecules that combine with one or two hydrophilic headgroups connected by a hydrophobic spacer can increase skin penetration.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 4, 2010
    Applicant: CORUM INC.
    Inventors: Wei-Chuan Tsai, Chen-Yin Chen, Ming-Yi Chiu, Yi-Fan Ling, Nai-Hsuan Hsu