Patents by Inventor Hahn Min

Hahn Min 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).

  • Non-reusable disposable syringe
    Patent number: 4932941
    Abstract: There is disclosed a disposable and non-reusable syringe which has its piston locked in its forward dispense position after it is used, and the plunger is pulled out from the piston if the plunger is sought to be retracted from the syringe. The non-reusable syringe is so constructed to prevent the piston from reengaging with the plunger, even if the plunger is retracted and sought to be reinserted.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: June 12, 1990
    Inventors: Kyung M. Min, Hahn Min