Patents by Inventor Do Weon LEE

Do Weon LEE 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).

  • Dental glass-ionomer cement composition and method of preparing the same
    Patent number: 10023721
    Abstract: Disclosed is a dental glass-ionomer cement composition, which includes polycarboxylic acid, water, and a glass powder including a metal component that is able to form an ionic bond with a carboxyl group of polycarboxylic acid in the presence of water and having a polymer material that is applied on at least a portion of the surface of the glass powder. The dental glass-ionomer cement composition can guarantee sufficient working time and can exhibit increased initial strength.
    Type: Grant
    Filed: November 15, 2015
    Date of Patent: July 17, 2018
    Assignee: SPIDENT CO., LTD.
    Inventors: Na Ri Lee, Ki Hoon Kim, Jae Hwan Kim, Do Weon Lee, Min-Sung Kim
  • DENTAL GLASS-IONOMER CEMENT COMPOSITION AND METHOD OF PREPARING THE SAME
    Publication number: 20160152795
    Abstract: Disclosed is a dental glass-ionomer cement composition, which includes polycarboxylic acid, water, and a glass powder including a metal component that is able to form an ionic bond with a carboxyl group of polycarboxylic acid in the presence of water and having a polymer material that is applied on at least a portion of the surface of the glass powder. The dental glass-ionomer cement composition can guarantee sufficient working time and can exhibit increased initial strength.
    Type: Application
    Filed: November 15, 2015
    Publication date: June 2, 2016
    Inventors: Na Ri LEE, Ki Hoon KIM, Jae Hwan KIM, Do Weon LEE