Patents by Inventor Pik To Cheung

Pik To Cheung 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: 9464271
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 11, 2016
    Assignee: Versitech Limited
    Inventors: Barbara Pui Chan, Godfrey Chi-Fung Chan, Hoi Ling Wong, Pik To Cheung, Song-Eng Kathryn Cheah, Danny Chan
  • Publication number: 20140170745
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 19, 2014
    Applicant: The University of Hong Kong
    Inventors: Barbara Pui Chan, Godfrey Chi-Fung Chan, Hoi Ling Wong, Pik To Cheung, Song-Eng Kathryn Cheah, Danny Chan
  • Patent number: 8679809
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 25, 2014
    Assignee: The University of Hong Kong
    Inventors: Barbara Pui Chan, Godfrey Chi-Fung Chan, Hoi Ling Wong, Pik To Cheung, Song-Eng Kathryn Cheah, Danny Chan
  • Publication number: 20080031858
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Application
    Filed: May 18, 2007
    Publication date: February 7, 2008
    Inventors: Barbara Chan, Godfrey Chan, Hoi Wong, Pik Cheung, Song-Eng Cheah, Danny Chan
  • Publication number: 20050191363
    Abstract: The present invention relates to a method for inhibiting hepatic fibrogenesis, especially liver fibrogenesis, which method comprises administering an effective amount of Fibroscutum, a mixture of natural peptides extracted from the liver tissue of suckling pig, containing at least 6 peptides of relative abundance of 10-27% and molecular weight of 7-40 kD.
    Type: Application
    Filed: July 2, 2004
    Publication date: September 1, 2005
    Inventors: Mengsu Yang, Hsiang-fu Kung, Yaou Zhang, Celina Cheng, Pik Cheung