Patents by Inventor Warren J. Bleiweiss

Warren J. Bleiweiss 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 dose, prefilled, disposable syringe
    Patent number: 5575776
    Abstract: A single dose, prefilled, disposable syringe is provided in which an outer casing surrounding the syringe in the packaged state is collapsible to act as a plunger during use of the syringe. The outer casing has a series of longitudinal grooves formed around its circumference to facilitate collapsing of the outer casing. The collapsed outer casing has a smaller diameter than the barrel of the syringe so that the collapsed outer casing can push the piston through the barrel of the syringe to eject the single dose of medication.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: November 19, 1996
    Inventor: Warren J. Bleiweiss