Patents by Inventor Xiao Gang Dou

Xiao Gang Dou 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).

  • Molded one-piece weighing funnel
    Patent number: 6179022
    Abstract: Mold apparatus for molding a weighing funnel that has a large diameter central segment, and a hole at each end that is smaller than the central segment. A 2-part core is used, the two parts together forming the size and shape of the article to be molded, and to remove the core from the molded article, the parts are withdrawn individually through a hole at the end of the article.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: January 30, 2001
    Inventors: Jinghua Schneider, Wei Min Gan, Xiao Gang Dou