Patents by Inventor Richard Hitzelberg

Richard Hitzelberg 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).

  • Locking needle cover
    Patent number: 5250031
    Abstract: A locking protective cover for a needle or cannula of a hypodermic syringe, blood collector or other device includes a retractable cap member connected to the base of the needle by a resilient support that biases the cap member to a cover position around the needle tip. The cap member provides a needle channel for axial passage of the needle and a tip storage bore laterally connected to a needle channel through a one way locking path that permits transfer of the needle to the storage bore without removal of the tip from the cap member.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: October 5, 1993
    Assignee: The George Washington University
    Inventors: Lee D. Kaplan, Richard Hitzelberg