Patents by Inventor ZHI-FENG SHI

ZHI-FENG SHI 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).

  • Publication number: 20230075532
    Abstract: The present disclosure discloses a method for making an ice surface of an ice rink and an ice rink including the ice surface. In the method, a salt solution is applied to an ice surface. The salt solution contains anions. A concentration of the anions is in a range from about 0.63 mmol/L to about 10 mmol/L. The anions in the salt solution are selected from the group consisting of chloride ions, nitrate ions, bromide ions, iodide ions, chlorate ions, perchlorate ions, thiocyanate ions, and any combination thereof. The ice surface is maintained at a temperature of about ?4° C. to about 14° C. to naturally freeze the salt solution.
    Type: Application
    Filed: March 4, 2022
    Publication date: March 9, 2023
    Inventors: LI-RAN MA, CHANG DONG, YUAN LIU, ZHI-FENG SHI, ZHI-TAO HUANG, HAO-YU WANG, JIA-DAO WANG