Patents by Inventor Chad Quistad

Chad Quistad 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).

  • Door latch mechanism for drug delivery device
    Patent number: 11071826
    Abstract: A drug delivery device includes a housing defining a shell and an inner volume, a cassette, a door coupled to the housing, a drive mechanism, and a latching assembly. The cassette is removably disposed within the inner volume and is adapted to contain a drug to be administered to a user. The door at least partially encloses the inner volume of the housing and includes a first end defining a latching portion. The drive mechanism is at least partially disposed within the housing and exerts a force to urge the drug out the cassette. The latching assembly is coupled to the drive mechanism and includes a first end and a second end. Upon actuating the drive mechanism, the drive mechanism causes the latching assembly to engage the latching portion of the door to secure the door to the housing.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 27, 2021
    Assignee: AMGEN INC.
    Inventors: Andrew Coles, Chad Quistad, Emanuele Strada, Francesco Lauritano, Alessia Mazzicone, Antonio Antonini
  • DOOR LATCH MECHANISM FOR DRUG DELIVERY DEVICE
    Publication number: 20190143043
    Abstract: A drug delivery device includes a housing defining a shell and an inner volume, a cassette, a door coupled to the housing, a drive mechanism, and a latching assembly. The cassette is removably disposed within the inner volume and is adapted to contain a drug to be administered to a user. The door at least partially encloses the inner volume of the housing and includes a first end defining a latching portion. The drive mechanism is at least partially disposed within the housing and exerts a force to urge the drug out the cassette. The latching assembly is coupled to the drive mechanism and includes a first end and a second end. Upon actuating the drive mechanism, the drive mechanism causes the latching assembly to engage the latching portion of the door to secure the door to the housing.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Andrew Coles, Chad Quistad, Emanuele Strada, Francesco Lauritano, Alessia Mazzicone, Antonio Antonini