Patents by Inventor Chang H. Choi

Chang H. Choi 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: 20230112114
    Abstract: Exemplary sample processing methods are described that include providing an initial sample to a sample processing system. The sample processing system includes a light-emitting-diode, a temperature control unit, and a fluid supply unit. The methods also include irradiating the initial sample with light emitted from the light-emitting-diode to produce an irradiated sample. The methods may still further include adjusting a temperature of the irradiated sample with the temperature control unit to between 0° C. and 60° C., and contacting the irradiated sample with a fluid from the fluid supply unit. The irradiated sample has a reduction in auto-fluorescence of greater than or about 50% compared to the initial sample. Exemplary sample processing systems are also described that include a light-emitting-diode, a temperature control unit, and a fluid supply unit.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 13, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Joseph R. Johnson, Yang Ming Lee, Hsiao-Ying Cheng, Christabelle Si Mei Goh, Ustun Serdar Tulu, Chang H. Choi, Chloe Kim
  • Publication number: 20090047656
    Abstract: The present invention provides a method of propagating cells of interest obtained from a biological specimen by a) enriching the cells under conditions that maintain sufficient cell viability; and b) propagating the cells under conditions effective to allow cell viability, proliferation and integrity.
    Type: Application
    Filed: March 13, 2007
    Publication date: February 19, 2009
    Inventors: Jonathan F. Baden, Chang H. Choi, Dondapati Chowdary, Kathleen M. Curtin, Tatiana Vener, Haiying Wang, Christine A. Burnett, Abhijit Mazumder