Patents by Inventor LONGWEI CHI

LONGWEI CHI 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).

  • SOLE AND FOOTWEAR HAVING THE SOLE
    Publication number: 20250359623
    Abstract: A sole includes a first layer, a second layer, a third layer, and a fourth layer stacked from bottom to top. A hardness of the first layer is greater than a hardness of the third layer, the hardness of the third layer is greater than a hardness of the second layer, and the hardness of the second layer is greater than a hardness of the fourth layer. A footwear having the sole is also provided.
    Type: Application
    Filed: August 4, 2025
    Publication date: November 27, 2025
    Inventors: LONGWEI CHI, CHANGSHENG CAO, YANG LIN, HANGTIAN ZHANG