Patents by Inventor Cheng-Chieh Chou

Cheng-Chieh Chou 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).

  • Patent number: 12233026
    Abstract: Drug delivery devices, sealing members for containers housed within such drug delivery devices, and related methods of assembly are disclosed. The drug delivery device may include a housing, a container disposed in the housing and having an interior volume, a drug disposed in the interior volume, and a septum. The container may have an opening formed in an end surface and which communicates with the interior volume. The septum may include a proximal end inserted through the opening into the interior volume of the container. Additionally, the septum may include a distal end having a flange disposed outwardly of the proximal end and contacting the end surface of the container. At least an end portion of the flange may be made of a material that is permeable to a gaseous sterilizing agent.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: February 25, 2025
    Assignee: AMGEN INC.
    Inventors: Cheng-Chieh Chou, Mingda Eu, Ren-Yo Forng, Wael Mismar
  • Publication number: 20230404850
    Abstract: Drug delivery devices, sealing members for containers housed within such drug delivery devices, and related methods of assembly are disclosed. The drug delivery device may include a housing, a container disposed in the housing and having an interior volume, a drug disposed in the interior volume, and a septum. The container may have an opening formed in an end surface and which communicates with the interior volume. The septum may include a proximal end inserted through the opening into the interior volume of the container. Additionally, the septum may include a distal end having a flange disposed outwardly of the proximal end and contacting the end surface of the container. At least an end portion of the flange may be made of a material that is permeable to a gaseous sterilizing agent.
    Type: Application
    Filed: April 28, 2023
    Publication date: December 21, 2023
    Inventors: Cheng-Chieh Chou, Mingda Eu, Ren-Yo Forng, Wael Mismar
  • Patent number: 11672733
    Abstract: Drug delivery devices, sealing members for containers housed within such drug delivery devices, and related methods of assembly are disclosed. The drug delivery device may include a housing, a container disposed in the housing and having an interior volume, a drug disposed in the interior volume, and a septum. The container may have an opening formed in an end surface and which communicates with the interior volume. The septum may include a proximal end inserted through the opening into the interior volume of the container. Additionally, the septum may include a distal end having a flange disposed outwardly of the proximal end and contacting the end surface of the container. At least an end portion of the flange may be made of a material that is permeable to a gaseous sterilizing agent.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 13, 2023
    Assignee: AMGEN INC.
    Inventors: Cheng-Chieh Chou, Mingda Eu, Ren-Yo Forng, Wael Mismar
  • Publication number: 20220160972
    Abstract: A syringe sterilization verification assembly includes a syringe, a tip cap assembly, and a biological indicator (BI) member. The syringe includes a barrel having a tip. The tip cap assembly includes an insert having a skirt configured to receive the tip. And the biological indicator (BI) member has an annular portion disposed around at least a portion of the tip and disposed radially between the tip and the skirt of the insert.
    Type: Application
    Filed: April 22, 2020
    Publication date: May 26, 2022
    Inventors: Cheng-Chieh Chou, Mingda Eu, Ren-Yo Forng, Malak Guirguis, Olivia Alice Henderson, Jessica Hai Liu, Robert W. Swift, Chia-Jung Wu
  • Publication number: 20210361529
    Abstract: Drug delivery devices, sealing members for containers housed within such drug delivery devices, and related methods of assembly are disclosed. The drug delivery device may include a housing, a container disposed in the housing and having an interior volume, a drug disposed in the interior volume, and a septum. The container may have an opening formed in an end surface and which communicates with the interior volume. The septum may include a proximal end inserted through the opening into the interior volume of the container. Additionally, the septum may include a distal end having a flange disposed outwardly of the proximal end and contacting the end surface of the container. At least an end portion of the flange may be made of a material that is permeable to a gaseous sterilizing agent.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 25, 2021
    Inventors: Cheng-Chieh Chou, Mingda Eu, Ren-Yo Forng, Wael Mismar