Patents by Inventor Yit K. Lee

Yit K. Lee 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).

  • Protective cover for hypodermic needle
    Patent number: 4946447
    Abstract: A protective sleeve for the needle of a hypodermic syringe includes a formed resilient plastic body. The body is split longitudinally to form slightly greater than a semicylinder. The body is snapped onto the barrel of a hypodermic needle before or after the needle is used. It may be slid longitudinally over the needle to protect against accidental puncture by the needle after the needle is used and locks into this position.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: August 7, 1990
    Inventors: Samuel L. Hardcastle, Yit K. Lee