Patents by Inventor Kuen-Lin Leu

Kuen-Lin Leu 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).

  • Method for producing polymer latex particle coated with silver nanoparticles
    Patent number: 9777125
    Abstract: This invention is related to a method for producing polymer latex particle coated with silver nanoparticles. First, a polymer latex particle suspension is mixed with a silver nitrate solution in a weight ratio of 10:1 to 1:10 at 50° C. to 90° C. for 10 to 120 minutes to form a mixed solution. After the temperature of the mix solution is cooled to 50° C. to 85° C., a sodium citrate solution is added to react with the mixed solution for 10 to 240 minutes to form a polymer latex particle coated with silver nanoparticles, which has antibacterial activity.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 3, 2017
    Assignees: Nerd Skincare Inc., Chia-Fen Lee
    Inventors: Ying-Tung Chen, Chia-Fen Lee, Yu-Syuan Chang, Kuen-Lin Leu
  • METHOD FOR PRODUCING POLYMER LATEX PARTICLE COATED WITH SILVER NANOPARTICLES
    Publication number: 20170114191
    Abstract: This invention is related to a method for producing polymer latex particle coated with silver nanoparticles. First, a polymer latex particle suspension is mixed with a silver nitrate solution in a weight ratio of 10:1 to 1:10 at 50° C. to 90° C. for 10 to 120 minutes to form a mixed solution. After the temperature of the mix solution is cooled to 50° C. to 85° C., a sodium citrate solution is added to react with the mixed solution for 10 to 240 minutes to form a polymer latex particle coated with silver nanoparticles, which has antibacterial activity.
    Type: Application
    Filed: November 27, 2015
    Publication date: April 27, 2017
    Inventors: YING-TUNG CHEN, CHIA-FEN LEE, YU-SYUAN CHANG, KUEN-LIN LEU
  • Fish growth hormones
    Publication number: 20030084469
    Abstract: The invention relates to new fish growth hormones, nucleic acids encoding them, and transgenic fish that express them.
    Type: Application
    Filed: July 9, 2002
    Publication date: May 1, 2003
    Inventors: Chi-Yao Chang, Jing-Wen Ting, Kuen-Lin Leu, Chih-Hung Lin, Chia-Ching Chang, Chih-Tung Tsai
  • Fish growth hormones
    Patent number: 6429305
    Abstract: The invention relates to new fish growth hormones, nucleic acids encoding them, and transgenic fish that express them.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: August 6, 2002
    Assignee: Academia Sinica
    Inventors: Chi-Yao Chang, Chia-Ching Chang, Kuen-Lin Leu, Chih-Tung Tsai, Jing-Wen Ting, Chih-Hung Lin