Patents by Inventor Ansheng Li

Ansheng Li 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: 20130245495
    Abstract: The invention relates to a flocking swab for biological sampling quantitatively and a method for making the same. One or two ends of the swab shaft form a loop by injection molding process. Flocking fiber is flocked into a layer on the surface of the loop by conventional electrostatic flocking process. By controlling the diameter of the loop frame, the diameter of the cylinder of the loop, and parameters of flocking fibers, a quantitative swab for biological sampling can be made. The swab disclosed in this invention can be used in quantitative sampling, has large sampling volume and securely attached swab tip. Moreover, it is safe and easy to use.
    Type: Application
    Filed: February 9, 2011
    Publication date: September 19, 2013
    Inventors: Ansheng Li, Yaohua Wu, Shuhua Tan, Zhonghua He, Chaochao Fan