Patents by Inventor Ding Yin Li

Ding Yin 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).

  • Fingertip fluid and its applicator
    Publication number: 20030202838
    Abstract: A fluid for moisturizing fingertip and an applicator for uniformly dispensing the liquid to the skin of fingertip. The fingertip moistener fluid is to ease paper-handling tasks. By applying the fluid one fingertips, the user will get a better grip when handling slippery materials such as paper or money.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 30, 2003
    Inventors: Yao Sun, Ding Yin Li, Jiao Sun