Patents by Inventor Jennifer D. Griffiths

Jennifer D. Griffiths 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
    Patent number: 4968304
    Abstract: A sheath for the needle of a hypodermic syringe to isolate the needle so as to avoid contamination and injury, particularly after use of the needle. The sheath comprises a hollow body having an opening at one end and is movable relative to the syringe needle between a first position in which the syringe needle is wholly contained within the hollow body and a second position in which the syringe needle extends through the opening in the hollow body.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: November 6, 1990
    Assignee: Nujenko Pty. Ltd.
    Inventors: Konrad G. Alter, Jennifer D. Griffiths
  • Syringe
    Patent number: 4919652
    Abstract: Several embodiments of disposable syringes having a barrel, a plunger and needle wherein the plunger is adapted to withdraw the needle and be permanently deformed so as to render the syringe incapable of a second use after an injection has been made.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: April 24, 1990
    Assignee: Nujenko Pty. Ltd.
    Inventors: Konrad G. Alter, Jennifer D. Griffiths