Patents by Inventor John Maffetone

John Maffetone 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).

  • Self disabling, single use, hypodermic syringe
    Patent number: 5084017
    Abstract: A single-use, hypodermic syringe which disables itself during its initial application thereby preventing any subsequent use of the syringe. The working parts of the invention are designed to separate automatically when the syringe is oriented into the solution dispensing mode. These separated parts prevent subsequent aspiration of solutions into the syringe thereby rendering the syringe inoperable and unuseable after its initial use.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: January 28, 1992
    Inventor: John Maffetone