Patents by Inventor Chun-Yuan Ro

Chun-Yuan Ro 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 preparing shape-changed nanosize colloidal silica
    Publication number: 20030113251
    Abstract: A method for preparing shape-changed nanosize colloidal silica comprising the following steps: a). providing a nanosize spherical colloidal silica solution having an average diameter no more than 100 nm; b). adding a coagulant having a concentration no more than 5 wt % and an active silicic acid to the colloidal silica solution, and raising the reaction temperature; and c). keeping addition of said active silicic acid to said solution obtained from step b) continuously until the concentration of SiO2 reaches 6 to 50% by weight.
    Type: Application
    Filed: December 6, 2002
    Publication date: June 19, 2003
    Applicant: Chung Shan Institute of Science & Technology
    Inventors: Zong-Whie Shih, Kai-Yia Chang, Chun-Lan Tseng, Chun-Yuan Ro