Patents by Inventor Vincent Ho Yin Leung

Vincent Ho Yin Leung 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).

  • METHOD OF LONG-TERM PRESERVATION OF CHEMICAL AND BIOLOGICAL SPECIES USING SUGAR GLASSES
    Publication number: 20230144557
    Abstract: A method of preserving one or more chemical and/or biological species in a polymer matrix comprising pullulan and trehalose is described. The method includes combining the one or more chemical and/or biological species, an aqueous pullulan and a trehalose solution and drying the resultant mixture to provide a solid polymeric matrix in the form of a powder and/or with a water content of less than 10 wt %. The polymeric matrix comprising the one or more chemical and/or biological species and its use, for example, in biological preparations and medicaments is also described.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 11, 2023
    Inventors: Vincent Ho Yin Leung, Sana Jahanshahi-Anbuhi, Carlos Filipe, M. Monsur Ali
  • METHOD OF LONG-TERM PRESERVATION OF CHEMICAL AND BIOLOGICAL SPECIES USING SUGAR GLASSES
    Publication number: 20210283065
    Abstract: A method of preserving the one or more chemical and/or biological species in a polymer matrix comprising pullulan and trehalose is described. The method includes combining the one or more chemical and/or biological species, an aqueous pullulan and a trehalose solution and drying the resultant mixture to provide a solid polymeric matrix. A polymeric matrix comprising one or more chemical and/or biological species and its use, for example, on surfaces for food preparation, for food preservation and in biological preparations is also described.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Applicant: McMaster University
    Inventors: Vincent Ho Yin Leung, Sana Jahanshahi-Anbuhi, Carlos Filipe, M.Monsur Ali
  • Method of long-term preservation of chemical and biological species using sugar glasses
    Patent number: 11040015
    Abstract: A method of preserving the one or more chemical and/or biological species in a polymer matrix comprising pullulan and trehalose is described. The method includes combining the one or more chemical and/or biological species, an aqueous pullulan and a trehalose solution and drying the resultant mixture to provide a solid polymeric matrix. A polymeric matrix comprising one or more chemical and/or biological species and its use, for example, on surfaces for food preparation, for food preservation and in biological preparations is also described.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 22, 2021
    Assignee: McMaster University
    Inventors: Vincent Ho Yin Leung, Sana Jahanshahi- Anbuhi, Carlos Filipe, M. Monsur Ali
  • METHOD OF LONG-TERM PRESERVATION OF CHEMICAL AND BIOLOGICAL SPECIES USING SUGAR GLASSES
    Publication number: 20190111006
    Abstract: A method of preserving the one or more chemical and/or biological species in a polymer matrix comprising pullulan and trehalose is described. The method includes combining the one or more chemical and/or biological species, an aqueous pullulan and a trehalose solution and drying the resultant mixture to provide a solid polymeric matrix. A polymeric matrix comprising one or more chemical and/or biological species and its use, for example, on surfaces for food preparation, for food preservation and in biological preparations is also described.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Applicant: McMaster University
    Inventors: Vincent Ho Yin Leung, Sana Jahanshahi- Anbuhi, Carlos Filipe, M. Monsur Ali