Patents by Inventor Yanda Lei

Yanda Lei 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).

  • BLOCK COPOLYMERS FOR TOOTH ENAMEL PROTECTION
    Publication number: 20210251879
    Abstract: Described herein are block copolymers having hydrophobic blocks and hydrophilic blocks which are effective in binding to the surface of hard tissue; compositions comprising the same, as well as methods of making and using the same.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Applicants: Colgate-Palmolive Company, Howard University
    Inventors: Tongxin WANG, Yanda LEI, James W. MITCHELL, Lynette ZAIDEL, Jian-Hong QIU, Mahmoud HASSAN
  • Block copolymers for tooth enamel protection
    Patent number: 10918588
    Abstract: Described herein are block copolymers having hydrophobic blocks and hydrophilic blocks which are effective in binding to the surface of hard tissue; compositions comprising the same, as well as methods of making and using the same.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 16, 2021
    Assignees: Colgate-Palmolive Company, Howard University
    Inventors: Tongxin Wang, Yanda Lei, James W. Mitchell, Lynette Zaidel, Jian-hong Qiu, Mahmoud Hassan
  • BLOCK COPOLYMERS FOR TOOTH ENAMEL PROTECTION
    Publication number: 20150283061
    Abstract: Described herein are block copolymers having hydrophobic blocks and hydrophilic blocks which are effective in binding to the surface of hard tissue; compositions comprising the same, as well as methods of making and using the same.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 8, 2015
    Inventors: Tongxin WANG, Yanda LEI, James W. MITCHELL, Lynette ZAIDEL, Jianhong QIU, Mahmoud HASSAN
  • Block Copolymers For Tooth Enamel Protection
    Publication number: 20140134116
    Abstract: Described herein are block copolymers having hydrophobic blocks and hydrophilic blocks which are effective in binding to the surface of hard tissue; compositions comprising the same, as well as methods of making and using the same are also described.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Inventors: Tongxin Wang, Yanda Lei, James W. Mitchell, Lynette Zaidel, Jianhong Qiu, Mahmoud Hassan