Patents by Inventor David Farbstein

David Farbstein 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).

  • Single use disposable syringe
    Patent number: 5085638
    Abstract: A syringe comprising means making it possible to make the plunger integral with the end of the plunger stem during the first filling, and to cause the disconnection between these element during a refilling attempt.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: February 4, 1992
    Inventors: David Farbstein, Miriam Ochshorn