Patents by Inventor John Joubran

John Joubran 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).

  • Sterile flow cytometer and sorter with mechanical isolation between flow chamber and sterile enclosure and methods for using same
    Patent number: 5776781
    Abstract: An apparatus and process for measuring particles that prevents the particles from being contaminated during the measuring and optional sorting process wherein a flow chamber or region is mechanically isolated from a sterile enclosure which surrounds the flow chamber. The present invention in one embodiment provides an apparatus comprising of a droplet generator, a charging system, a deflecting system, a sterilization system, a light source, a detector, a cooling system and a vacuum system. The droplet generator and the charging system and the flow chamber associated with the droplet generator operate within an illumination frame where the particles (e.g. biological cells) are actually measured.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 7, 1998
    Assignee: Systemix
    Inventors: Michael H. Vardanega, Raymond Swan, John Joubran, David J. Medeiros, Edie Tichenor, Hugh Lewis
  • Sterile flow cytometer and sorter with mechanical isolation between flow chamber and sterile enclosure
    Patent number: 5641457
    Abstract: An apparatus and process for measuring particles that prevents the particles from being contaminated during the measuring and optional sorting process wherein a flow chamber or region is mechanically isolated from a sterile enclosure which surrounds the flow chamber. The present invention in one embodiment provides an apparatus comprising of a droplet generator, a charging system, a deflecting system, a sterilization system, a light source, a detector, a cooling system and a vacuum system. The droplet generator and the charging system and the flow chamber associated with the droplet generator operate within an illumination frame where the particles (e.g. biological cells) are actually measured.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: June 24, 1997
    Assignee: Systemix
    Inventors: Michael H. Vardanega, Raymond Swan, John Joubran, David J. Medeiros, Edie Tichenor, Hugh Lewis