Patents by Inventor Lesley Chan

Lesley Chan 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: 11242503
    Abstract: A method for dissociating cell aggregates in an agitated reactor. The method comprises providing a cell culture comprising cell aggregates in the agitated reactor, contacting the cell aggregates with a dissociation reagent, generating a dissociation force in the agitated reactor and exposing the contacted cell aggregates to the generated dissociation force under conditions sufficient to dissociate the contacted cell aggregates. The method may be used in a process for passaging cells and/or generating dissociated differentiated cells from stem and/or progenitor cells.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 8, 2022
    Assignee: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
    Inventors: Nicholas Timmins, Lesley Chan
  • Publication number: 20220005980
    Abstract: Micro-scale light emitting diodes (micro-LEDs) with ultra-low leakage current results from a sidewall passivation method for the micro-LEDs using a chemical treatment followed by conformal dielectric deposition, which reduces or eliminates sidewall damage and surface recombination, and the passivated micro-LEDs can achieve higher efficiency than micro-LEDs without sidewall treatments. Moreover, the sidewall profile of micro-LEDs can be altered by varying the conditions of chemical treatment.
    Type: Application
    Filed: October 31, 2019
    Publication date: January 6, 2022
    Applicant: The Regents of the University of California
    Inventors: Tal Margalith, Matthew S. Wong, Lesley Chan, Steven P. DenBaars
  • Publication number: 20190031990
    Abstract: A method for dissociating cell aggregates in an agitated reactor. The method comprises providing a cell culture comprising cell aggregates in the agitated reactor, contacting the cell aggregates with a dissociation reagent, generating a dissociation force in the agitated reactor and exposing the contacted cell aggregates to the generated dissociation force under conditions sufficient to dissociate the contacted cell aggregates. The method may be used in a process for passaging cells and/or generating dissociated differentiated cells from stem and/or progenitor cells.
    Type: Application
    Filed: January 25, 2017
    Publication date: January 31, 2019
    Inventors: Nicholas Timmins, Lesley Chan