Patents by Inventor Yung-Wen Shen

Yung-Wen Shen 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).

  • SYRINGE NEEDLE DEVICE
    Publication number: 20070244432
    Abstract: A syringe needle device comprises a needle, a ring and a cover, wherein a needle seat of the needle can be engaged with the cover, a stopping portion is mounted on the needle seat for stopping the ring, thereby the needle is retained in the cover after taking out the ring and mounting on the cover.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 18, 2007
    Inventors: Yung-Wen Shen, Chih-Chang Huang