Patents by Inventor Yuhan ZHANG

Yuhan ZHANG 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).

  • METHOD FOR PREPARING INTELLIGENT ANTIBACTERIAL AND ANTIOXIDATIVE FILM
    Publication number: 20180355131
    Abstract: A method for preparing an intelligent antibacterial and antioxidative film involves preparing a PVA solution; adding nano-TiO2 to the PVA solution to obtain a PVA-TiO2 solution; determining the optimal amount of nano-TiO2; preparing a PSPC solution; preparing a PSPC-TiO2-PVA solution; and producing a PSPC/TiO2/PVA film. The film has better mechanical performance than saccharide and protein films. Shelf life of food is prolonged as the film possesses antibacterial and antioxidative properties. Furthermore, the film shows different colors in various pH environments. The film has a wide range of applications in food packaging owing to the integration of color development and antibacterial and antioxidative properties.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 13, 2018
    Inventors: Jing XIE, Zhipeng TANG, Chenwei CHEN, Jinfeng WANG, Yuhan ZHANG
  • Method and apparatus for providing location information of mobile terminal
    Patent number: 10149100
    Abstract: The present invention provides a method and apparatus for providing location information of a mobile terminal, which help to shorten the time for determining an anonymous area of a user. The present invention also aims at reducing the size of the anonymous space area as much as possible so as to ensure the quality of a location-based service.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: December 4, 2018
    Assignees: BEIJING JINGDONG SHANGKE INFORMATION TECHNOLOGY CO, LTD., BEIJING JINGDONG CENTURY TRADING CO., LTD.
    Inventor: Yuhan Zhang
  • METHOD AND APPARATUS FOR PROVIDING LOCATION INFORMATION OF MOBILE TERMINAL
    Publication number: 20170026793
    Abstract: The present invention provides a method and apparatus for providing location information of a mobile terminal, which help to shorten the time for determining an anonymous area of a user. The present invention also aims at reducing the size of the anonymous space area as much as possible so as to ensure the quality of a location-based service.
    Type: Application
    Filed: February 17, 2015
    Publication date: January 26, 2017
    Inventor: Yuhan ZHANG
  • Cosmetic applicator
    Patent number: D782730
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: March 28, 2017
    Assignee: Revlon Consumer Products Corporation
    Inventors: Yuhan Zhang, Martti Johannes Lampela, Carlos Barreto
  • Cosmetic applicator
    Patent number: D815351
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 10, 2018
    Assignee: Revlon Consumer Products Corporation
    Inventors: Yuhan Zhang, Martti Johannes Lampela, Carlos Barreto