Patents by Inventor Ji Hye Le

Ji Hye Le 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).

  • Publication number: 20230033198
    Abstract: A cell extruder of the present invention comprises: a pressure vessel in which a sample is dispensed; a regulator for adjusting a set pressure of nitrogen gas injected into the pressure vessel and then maintaining a constant pressure; an input valve for opening and closing the injection of nitrogen gas into the pressure vessel; an exhaust valve for removing the internal pressure of the pressure vessel; a filter holder which is provided with a membrane filter soaked with a reagent, so that the sample in the pressure vessel is fed through by the nitrogen gas and crushed into extracellular vesicles; and a collection container in which the extruded sample is stored. According to the present invention, pressure can be freely adjusted by the regulator. That is, the flow rate of the membrane according to pressure can be controlled, thus allowing the validation of a biopharmaceutical production method using an extracellular vesicle extruder.
    Type: Application
    Filed: September 22, 2020
    Publication date: February 2, 2023
    Inventors: Se Hee Kim, Ji Eun Lee, Shin Gyu Bae, Ji Hye Le, Jin Hee Park