Patents by Inventor Sui Yi Kwok

Sui Yi Kwok 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: 11576978
    Abstract: Provided herein are hemoglobin-based therapeutic agents useful for treating cancer, pharmaceutical composition including the same, and methods of use and preparation thereof.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: February 14, 2023
    Assignee: Cheer Global Limited
    Inventors: Sui-Yi Kwok, Norman Fung-Man Wai, Lan Zou
  • Patent number: 11535655
    Abstract: Provided herein is a method for treating an inflammatory bowel disease in a subject in need thereof, the method comprising administering a therapeutically effective amount of a hemoglobin to the subject.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 27, 2022
    Assignee: Cheer Global Limited
    Inventors: Sui Yi Kwok, Norman Fung Man Wai, Chi Shing Tai
  • Publication number: 20210401952
    Abstract: The invention provides a method for treating acute myeloid leukemia (AML) in a subject in need thereof, said method comprising administering a therapeutically effective amount of an arginine-depleting agent to the subject, wherein the AML is of the French-American-British (FAB) subtype M0 (undifferentiated acute myeloblastic leukemia), M2 (acute myeloblastic leukemia with maturation), M4 (acute myeloblastic leukemia with maturation), M4 eos (acute myelomonocytic leukemia with eosinophilia), M5 (acute monocytic leukemia), M6 (acute erythroid leukemia) or M7 (acute megakaryoblastic leukemia).
    Type: Application
    Filed: June 29, 2020
    Publication date: December 30, 2021
    Inventors: Sui-Yi KWOK, Norman Fung-Man WAI, Terence Shau Yin WAI, Yun Chung LEUNG
  • Publication number: 20210171590
    Abstract: Provided herein is a method for treating an inflammatory bowel disease in a subject in need thereof, the method comprising administering a therapeutically effective amount of a hemoglobin to the subject.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Sui Yi KWOK, Norman Fung Man WAI, Chi Shing TAI
  • Patent number: 10946099
    Abstract: The invention relates to pharmaceutical compositions comprising a conjugate of a porphyrin (e.g., PpIX) and a recombinant protein. The pharmaceutical compositions of the invention may be used in photodynamic therapy. The invention also relates to methods of producing such pharmaceutical compositions and to methods of using such pharmaceutical compositions in the treatment of diseases, such as cancer.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 16, 2021
    Assignee: VISION GLOBAL HOLDINGS LIMITED
    Inventors: Sui Yi Kwok, Norman Fung Man Wai, Terence Shau Yin Wai, Shan Yu
  • Patent number: 10913770
    Abstract: Provided herein are mertansine polypeptide conjugates useful in the treatment of cancer, pharmaceutical compositions comprising the same, and methods of use and preparation thereof. The methods provided herein are highly N-terminal selective and are capable of yielding N-terminal mertansine conjugated polypeptides with site selectivity of 99% or greater.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: February 9, 2021
    Assignee: Vision Global Holdings Limited
    Inventors: Sui-Yi Kwok, Norman Fung-Man Wai, Man-Kin Wong, Benjamin Chi-Yin Wai
  • Publication number: 20210015935
    Abstract: Provided herein are hemoglobin-based therapeutic agents useful for treating cancer, pharmaceutical composition including the same, and methods of use and preparation thereof.
    Type: Application
    Filed: July 20, 2020
    Publication date: January 21, 2021
    Inventors: Sui-Yi KWOK, Norman Fung-Man WAI, Lan ZOU
  • Publication number: 20200361988
    Abstract: Provided herein are mertansine polypeptide conjugates useful in the treatment of cancer, pharmaceutical compositions comprising the same, and methods of use and preparation thereof. The methods provided herein are highly N-terminal selective and are capable of yielding N-terminal mertansine conjugated polypeptides with site selectivity of 99% or greater.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Inventors: Sui-Yi Kwok, Norman Fung-Man WAI, Man-Kin WONG, Benjamin Chi-Yin WAI
  • Patent number: 10752672
    Abstract: The present disclosure relates to recombinant hemoglobins with improved oxygen carrying capacity and methods of preparation and use thereof. The present disclosure also relates to a pharmaceutical composition including the recombinant hemoglobin useful for treating oxygen deficiency related diseases or conditions, such as stroke, hemorrhagic shock, peripheral arterial disease (PAD), acute mountain sickness (AMS), cancer, and Parkinson's disease (PD).
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 25, 2020
    Assignee: Cheer Global Limited
    Inventors: Sui Yi Kwok, Norman Fung Man Wai, Shan Yu, Terence Shau Yin Wai
  • Publication number: 20200247877
    Abstract: The present disclosure relates to recombinant hemoglobins with improved oxygen carrying capacity and methods of preparation and use thereof. The present disclosure also relates to a pharmaceutical composition including the recombinant hemoglobin useful for treating oxygen deficiency related diseases or conditions, such as stroke, hemorrhagic shock, peripheral arterial disease (PAD), acute mountain sickness (AMS), cancer, and Parkinson's disease (PD).
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: Sui Yi KWOK, Norman Fung Man WAI, Shan YU, Terence Shau Yin WAI
  • Patent number: 10322180
    Abstract: The present invention provides a pharmaceutical composition containing hemoglobin-based therapeutic agent for treating cancer. The hemoglobin moiety can target cancer cells and the therapeutic moiety (i.e. active agent/therapeutic drug) can kill the cancer cells efficiently. The hemoglobin-based therapeutic agent used in the present invention can be used in the treatment of various cancers such as pancreatic cancer, leukemia, head and neck cancer, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal cancer, esophageal cancer, prostate cancer, stomach cancer and brain cancer. The composition can be used alone or in combination with other therapeutic agent(s) such as chemotherapeutic agent to give a synergistic effect on cancer treatment, inhibiting metastasis and/or reducing recurrence. The presently claimed hemoglobin-based 5FU-two-dye conjugate and/or hemoglobin-based 5FU-one-dye conjugate can also be used in live-cell imaging and diagnostic imaging.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 18, 2019
    Assignee: Vision Global Holdings Ltd.
    Inventors: Bing Lou Wong, Norman Fung Man Wai, Sui Yi Kwok, Man Kin Wong, Cornelia Wing Yin Man
  • Publication number: 20190054173
    Abstract: The invention relates to pharmaceutical compositions comprising a conjugate of a porphyrin (e.g., PpIX) and a recombinant protein. The pharmaceutical compositions of the invention may be used in photodynamic therapy. The invention also relates to methods of producing such pharmaceutical compositions and to methods of using such pharmaceutical compositions in the treatment of diseases, such as cancer.
    Type: Application
    Filed: June 27, 2018
    Publication date: February 21, 2019
    Applicant: VISION GLOBAL HOLDINGS LIMITED
    Inventors: Sui Yi KWOK, Norman Fung Man WAI, Terence Shau Yin WAI, Shan YU
  • Patent number: 10052290
    Abstract: The present invention provides an enteric-coated hemoglobin multiparticulate comprising a core, a hemoglobin formulation coating, an inner or sub-coating, and an enteric coating. The present invention also provides a method of preparing said enteric-coated hemoglobin multiparticulate. The present invention further provides a method for treating various diseases caused by oxygen deficiency comprising administering to a subject said enteric-coated hemoglobin multiparticulate in order to orally deliver the encapsulated hemoglobin-based oxygen carriers to a specific target of said subject in a controlled release manner.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 21, 2018
    Assignee: Billion King International Ltd.
    Inventors: Bing Lou Wong, Sui Yi Kwok
  • Patent number: 9814759
    Abstract: The present invention provides a pharmaceutical composition containing recombinant hemoglobin protein or tetramer or dimer or subunit for tissue oxygenation and treating cancer. The recombinant hemoglobin protein or tetramer or dimer or subunit-based therapeutic agent is also effective for treating cancer. The recombinant hemoglobin or tetramer or dimer or its subunit moiety can target cancer cells and the therapeutic moiety (i.e. active agent/therapeutic drug) can kill the cancer cells efficiently. The recombinant hemoglobin or tetramer or dimer or its subunit-based therapeutic agent used in the present invention can be used in the treatment of various cancers such as pancreatic cancer, leukemia, head and neck cancer, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal cancer, esophageal cancer, prostate cancer, stomach cancer and brain cancer.
    Type: Grant
    Filed: June 28, 2015
    Date of Patent: November 14, 2017
    Assignee: Cheer Global Ltd.
    Inventors: Bing Lou Wong, Norman Fung Man Wai, Sui Yi Kwok
  • Patent number: 9803185
    Abstract: The present invention provides a pharmaceutical composition containing albumin-binding arginine deiminase (AAD) fusion protein for treating cancer or other arginine-dependent diseases. The AAD fusion protein can be purified from both soluble and insoluble fractions of crude proteins, binds to human serum albumin (HSA) or animal serum albumin and has its high activity with longer half life for efficient depletion of arginine in cancer cells. The specific activities of wild-type ADI and AAD fusion protein in the present invention are about 20 and about 19 U/mg (at physiological pH 7.4), respectively. The composition can be used alone or in combination with at least one chemotherapeutic agent to give a synergistic effect on cancer treatment and/or inhibiting metastasis. The AAD fusion protein can also be used as a component for detection and quantitative analysis of arginine in a testing kit for various samples including blood, food and analytical samples.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 31, 2017
    Assignee: Vision Global Holdings Ltd.
    Inventors: Bing Lou Wong, Norman Fung Man Wai, Sui Yi Kwok, Yun Chung Leung
  • Patent number: 9770490
    Abstract: A process for making hemoglobin based oxygen carrier (HBOC) containing pharmaceutical composition suitable for oral delivery and the composition formed thereby are described. There are three exemplary composition configurations which include (1) hemoglobin-loaded nanoparticles solution, (2) enteric-coated hemoglobin capsules and (3) enteric-coated hemoglobin tablets. To facilitate the bioavailability and bio-compatibility of hemoglobin, intestinal absorption enhancers are added in each of the HBOC formulations. Protective layers ensure delivery of an intact hemoglobin structure in intestinal tract without degradation in the stomach. The HBOC formulations may be used for preventive or immediate treatment of high altitude syndrome (HAS) or for treatment of hypoxic conditions including blood loss, anemia, hypoxic cancerous tissue, and other oxygen-deprivation disorders.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: September 26, 2017
    Assignee: Billion King International Ltd.
    Inventors: Bing Lou Wong, Sui Yi Kwok
  • Publication number: 20170266285
    Abstract: The present invention provides a pharmaceutical composition containing hemoglobin-based therapeutic agent for treating cancer. The hemoglobin moiety can target cancer cells and the therapeutic moiety (i.e. active agent/therapeutic drug) can kill the cancer cells efficiently. The hemoglobin-based therapeutic agent used in the present invention can be used in the treatment of various cancers such as pancreatic cancer, leukemia, head and neck cancer, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal cancer, esophageal cancer, prostate cancer, stomach cancer and brain cancer. The composition can be used alone or in combination with other therapeutic agent(s) such as chemotherapeutic agent to give a synergistic effect on cancer treatment, inhibiting metastasis and/or reducing recurrence. The presently claimed hemoglobin-based 5FU-two-dye conjugate and/or hemoglobin-based 5FU-one-dye conjugate can also be used in live-cell imaging and diagnostic imaging.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 21, 2017
    Inventors: Bing Lou WONG, Norman Fung Man WAI, Sui Yi KWOK, Man Kin WONG, Cornelia Wing Yin MAN
  • Patent number: 9763889
    Abstract: A process for making hemoglobin based oxygen carrier (HBOC) containing pharmaceutical composition suitable for oral delivery and the composition formed thereby are described. There are three exemplary composition configurations which include (1) hemoglobin-loaded nanoparticles solution, (2) enteric-coated hemoglobin capsules and (3) enteric-coated hemoglobin tablets. To facilitate the bioavailability and bio-compatibility of hemoglobin, intestinal absorption enhancers are added in each of the HBOC formulations. Protective layers ensure delivery of an intact hemoglobin structure in intestinal tract without degradation in the stomach. The HBOC formulations may be used for preventive or immediate treatment of high altitude syndrome (HAS) or for treatment of hypoxic conditions including blood loss, anemia, hypoxic cancerous tissue, and other oxygen-deprivation disorders.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 19, 2017
    Assignee: Billion King International Ltd.
    Inventors: Bing Lou Wong, Sui Yi Kwok
  • Patent number: RE47233
    Abstract: The present invention provides a pharmaceutical composition containing albumin-binding arginine deiminase fusion protein (AAD) for treating cancer or other arginine-dependent diseases. The AAD fission protein can be purified from both soluble and insoluble fractions of crude proteins, it binds to human serum albumin (HSA) and has its high activity with longer half life for efficient depletion of arginine in cancer cells. The specific activities of wild-type ADI and AAD in the present invention are 8.4 and 9.2 U/mg (at physiological pH 7.4), respectively. The AAD used in the present invention can be used in the treatment of various cancers (e.g. pancreatic cancer, leukemia, head and neck cancer, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal cancer, esophageal cancer, prostate cancer, stomach cancer & brain cancer) and curing arginine-dependent diseases.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: February 12, 2019
    Assignee: Vision Global Holdings Ltd.
    Inventors: Bing Lou Wong, Norman Fung Man Wai, Sui Yi Kwok, Yun Chung Leung
  • Patent number: RE48805
    Abstract: The present invention provides a pharmaceutical composition containing albumin-binding arginine deiminase (AAD) fusion protein for treating cancer or other arginine-dependent diseases. The AAD fusion protein can be purified from both soluble and insoluble fractions of crude proteins, binds to human serum albumin (HSA) or animal serum albumin and has its high activity with longer half life for efficient depletion of arginine in cancer cells. The specific activities of wild-type ADI and AAD fusion protein in the present invention are about 20 and about 19 U/mg (at physiological pH 7.4), respectively. The composition can be used alone or in combination with at least one chemotherapeutic agent to give a synergistic effect on cancer treatment and/or inhibiting metastasis. The AAD fusion protein can also be used as a component for detection and quantitative analysis of arginine in a testing kit for various samples including blood, food and analytical samples.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: November 2, 2021
    Assignee: Vision Global Holdings Ltd.
    Inventors: Bing Lou Wong, Norman Fung Man Wai, Sui Yi Kwok, Yun Chung Leung