Patents by Inventor Douglas Li

Douglas Li 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).

  • Shoe insole
    Patent number: 10709195
    Abstract: An insole is provided. This insole features a front end, a thickness, a top surface, a bottom surface, a heel receiving portion having a first end and a second end, a lateral longitudinal arch support section which has a width, and a medial longitudinal arch support section. Preferably, the medial longitudinal arch support section is made up of a partial spherical cap which has a radius and a height, and the medial longitudinal arch support section runs from the first end of said heel receiving portion to the lateral longitudinal arch support section.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 14, 2020
    Assignee: Industech International Inc.
    Inventor: Douglas Li
  • SHOE INSOLE
    Publication number: 20170258175
    Abstract: An insole is provided. This insole features a front end, a thickness, a top surface, a bottom surface, a heel receiving portion having a first end and a second end, a lateral longitudinal arch support section which has a width, and a medial longitudinal arch support section. Preferably, the medial longitudinal arch support section is made up of a partial spherical cap which has a radius and a height, and the medial longitudinal arch support section runs from the first end of said heel receiving portion to the lateral longitudinal arch support section.
    Type: Application
    Filed: January 27, 2017
    Publication date: September 14, 2017
    Inventor: Douglas Li