Patents by Inventor Jordan Duesman

Jordan Duesman 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 with multifunctional needle holder and retainer ring assembly
    Patent number: 11298467
    Abstract: A syringe for medical use, the syringe having a selectively retractable needle and a multifunctional needle holder and retainer ring assembly including a needle holder with a head section having an inwardly tapering frustoconical section of the fluid pathway and a rearwardly facing annular surface surrounding the rear opening, and an elastomeric retainer ring with a substantially unexpanded collar extending rearwardly beyond the rearwardly facing annular surface to increase needle pushout force, reduce activation force and improve fluid flow through the syringe. Annular projections inside the retainer ring and on the outer surface of the head section of the needle holder are also disclosed.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 12, 2022
    Assignee: Retractable Technologies, Inc.
    Inventors: Thomas J. Shaw, Ni Zhu, Jordan Duesman
  • Syringe with Multifunctional Needle Holder and Retainer Ring Assembly
    Publication number: 20200268985
    Abstract: A syringe for medical use, the syringe having a selectively retractable needle and a multifunctional needle holder and retainer ring assembly including a needle holder with a head section having an inwardly tapering frustoconical section of the fluid pathway and a rearwardly facing annular surface surrounding the rear opening, and an elastomeric retainer ring with a substantially unexpanded collar extending rearwardly beyond the rearwardly facing annular surface to increase needle pushout force, reduce activation force and improve fluid flow through the syringe. Annular projections inside the retainer ring and on the outer surface of the head section of the needle holder are also disclosed.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Inventors: Thomas J. Shaw, Ni Zhu, Jordan Duesman