Patents by Inventor Zheng Rong Sun

Zheng Rong Sun 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).

  • Clean room safety shoe article with removal steel toe housing and method for treating the shoe
    Patent number: 7451553
    Abstract: A clean room shoe article, e.g., shoe, boot, safety shoe, safety boot. The article has a sole region. The article has an upper particle free polymer material having a toe region and an ankle region. The upper particle free polymer material is coupled to the sole region. The upper particle free polymer material is capable of enclosing a foot of a human user. The toe region houses an entirety of toes of the human user. The article has a steel toe housing member enclosing and protecting the entirety of the toes of the human user. The article has an enclosure provided in the toe region of the upper particle free polymer material. The enclosure is adapted to house the steel toe housing member. A sealing region is provided within a vicinity of the enclosure. The sealing region is adapted to maintain the steel toe housing member within the enclosure and is also adapted to open and remove the steel toe housing member from the enclosure provided in the toe region of the upper particle free polymer member.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 18, 2008
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Jo Wei Dun, Jen Lung Lan, Chi Yin Wu, Zheng Rong Sun