Patents by Inventor Tze Chieh SHIAO

Tze Chieh SHIAO 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: 11925680
    Abstract: Neoglycoconjugates as immunogens and therapeutic/diagnostic tools are described herein. The neoglycoconjugates are produced by conjugating a carbohydrate antigen intermediate to a free amine group of a carrier material (e.g., carrier protein). The intermediate comprises a linker having a first end and a second end, the first end being conjugated to a carbohydrate antigen via a thio ether bond and the second end comprising a functional group reactable with a free amine group. Following coupling, the carbohydrate antigen becomes covalently bound to the carrier material via an amide, a carbamate, a sulfonamide, a urea, or a thiourea bond, thereby producing the neoglycoconjugate. Applications of the neoglycoconjugates as antigens, immunogens, vaccines, and in diagnostics are also described.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: March 12, 2024
    Assignee: Koranex Capital
    Inventors: Tze Chieh Shiao, Serge Moffett, Serge Mignani, Rene Roy
  • Patent number: 10973910
    Abstract: Neoglycoconjugates as immunogens and therapeutic/diagnostic tools are described herein. The neoglycoconjugates are produced by conjugating a carbohydrate antigen intermediate to a free amine group of a carrier material (e.g., carrier protein). The intermediate comprises a linker having a first end and a second end, the first end being conjugated to a carbohydrate antigen via a thio ether bond and the second end comprising a functional group reactable with a free amine group. Following coupling, the carbohydrate antigen becomes covalently bound to the carrier material via an amide, a carbamate, a sulfonamide, a urea, or a thiourea bond, thereby producing the neoglycoconjugate. Applications of the neoglycoconjugates as antigens, immunogens, vaccines, and in diagnostics are also described.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: April 13, 2021
    Assignee: Koranex Capital
    Inventors: Tze Chieh Shiao, Serge Moffett, Serge Mignani, Rene Roy
  • Publication number: 20210085781
    Abstract: Neoglycoconjugates as immunogens and therapeutic/diagnostic tools are described herein. The neoglycoconjugates are produced by conjugating a carbohydrate antigen intermediate to a free amine group of a carrier material (e.g., carrier protein). The intermediate comprises a linker having a first end and a second end, the first end being conjugated to a carbohydrate antigen via a thio ether bond and the second end comprising a functional group reactable with a free amine group. Following coupling, the carbohydrate antigen becomes covalently bound to the carrier material via an amide, a carbamate, a sulfonamide, a urea, or a thiourea bond, thereby producing the neoglycoconjugate. Applications of the neoglycoconjugates as antigens, immunogens, vaccines, and in diagnostics are also described.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 25, 2021
    Inventors: Tze Chieh SHIAO, Serge MOFFETT, Serge MIGNANI, Rene ROY
  • Publication number: 20210085770
    Abstract: Neoglycoconjugates as immunogens and therapeutic/diagnostic tools are described herein. The neoglycoconjugates are produced by conjugating a carbohydrate antigen intermediate to a free amine group of a carrier material (e.g., carrier protein). The intermediate comprises a linker having a first end and a second end, the first end being conjugated to a carbohydrate antigen via a thio ether bond and the second end comprising a functional group reactable with a free amine group. Following coupling, the carbohydrate antigen becomes covalently bound to the carrier material via an amide, a carbamate, a sulfonamide, a urea, or a thiourea bond, thereby producing the neoglycoconjugate. Applications of the neoglycoconjugates as antigens, immunogens, vaccines, and in diagnostics are also described.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 25, 2021
    Inventors: Tze Chieh SHIAO, Serge MOFFETT, Serge MIGNANI, Rene ROY
  • Publication number: 20200261560
    Abstract: The present description relates to glycoconjugates, glycoconjugate immunogens and glycoconjugate vaccines comprising carbohydrate antigens coupled to immunogenic carrier proteins, or materials used for detection and screening of resulting antibodies. Improved methods of more directly and precisely conjugating carbohydrate antigens to free thiol groups of immunogenic carrier proteins are described, including “click-chemistry” approaches based on photocatalytic thiol-ene reactions.
    Type: Application
    Filed: February 27, 2020
    Publication date: August 20, 2020
    Inventors: Tze Chieh SHIAO, Rene ROY
  • Patent number: 10610576
    Abstract: The present description relates to glycoconjugates, glycoconjugate immunogens and glycoconjugate vaccines comprising carbohydrate antigens coupled to immunogenic carrier proteins, or materials used for detection and screening of resulting antibodies. Improved methods of more directly and precisely conjugating carbohydrate antigens to free thiol groups of immunogenic carrier proteins are described, including “click-chemistry” approaches based on photocatalytic thiol-ene reactions.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: April 7, 2020
    Assignee: Koranex Capital
    Inventors: Tze Chieh Shiao, Rene Roy
  • Publication number: 20190290746
    Abstract: The present description relates to glycoconjugates, glycoconjugate immunogens and glycoconjugate vaccines comprising carbohydrate antigens coupled to immunogenic carrier proteins, or materials used for detection and screening of resulting antibodies. Improved methods of more directly and precisely conjugating carbohydrate antigens to free thiol groups of immunogenic carrier proteins are described, including “click-chemistry” approaches based on photocatalytic thiol-ene reactions.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 26, 2019
    Inventors: Tze Chieh SHIAO, Rene ROY
  • Publication number: 20180271969
    Abstract: The present invention relates to an immunogenic composition comprising polysaccharide-protein conjugates wherein each conjugate contains a capsular polysaccharide prepared from Streptococcus suis serotypes 1, 2, 7 and/or 9 or any other serotype conjugated to a carrier protein. The immunogenic composition is useful for the protection of disease in an animal subject.
    Type: Application
    Filed: October 6, 2016
    Publication date: September 27, 2018
    Applicants: Boehringer Ingelheim Vetmedica, Inc., Université de Montréal, Université du Québec à Montréal
    Inventors: Marcelo GOTTSCHALK, Guillaume GOYETTE-DESJARDINS, Jennifer Anne Kempker, Axel NEUBAUER, René ROY, Mariela SEGURA, Tze Chieh SHIAO