Patents by Inventor Kwong Y. Tsang

Kwong Y. Tsang 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).

  • Publication number: 20240101702
    Abstract: NEO-201 is a humanized IgG1 monoclonal antibody (mAb) that is highly reactive against the majority of tumor tissues from many different carcinomas, including colon, pancreatic, stomach, lung, breast, and uterine cancers, but the overwhelming majority of normal tissues are not recognized by this antibody. Functional assays revealed that NEO-201 is capable of mediating both antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) against tumor cells. Furthermore, the growth of human pancreatic xenograft tumors in vivo was largely attenuated by treatment with NEO-201 both alone and in combination with human peripheral blood mononuclear cells (PBMC) as an effector cell source for ADCC. In vivo biodistribution studies in human tumor xenograft-bearing mice revealed that NEO-201 preferentially accumulates in the tumor but not organ tissue.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 28, 2024
    Inventors: Philip M. ARLEN, Kwong Y. TSANG
  • Patent number: 11767367
    Abstract: NEO-201 is a humanized IgG1 monoclonal antibody (mAb) that is highly reactive against the majority of tumor tissues from many different carcinomas, including colon, pancreatic, stomach, lung, breast, and uterine cancers, but the overwhelming majority of normal tissues are not recognized by this antibody. Functional assays revealed that NEO-201 is capable of mediating both antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) against tumor cells. Furthermore, the growth of human pancreatic xenograft tumors in vivo was largely attenuated by treatment with NEO-201 both alone and in combination with human peripheral blood mononuclear cells (PBMC) as an effector cell source for ADCC. In vivo biodistribution studies in human tumor xenograft-bearing mice revealed that NEO-201 preferentially accumulates in the tumor but not organ tissue.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 26, 2023
    Assignee: PRECISION BIOLOGICS, INC.
    Inventors: Philip M. Arlen, Kwong Y. Tsang
  • Publication number: 20210002383
    Abstract: The antibody NEO-201 is shown to bind to Treg cells, and its use in targeting Treg cells is described. NEO-201 may be used for isolation, detection, or purification of active Treg cells and also to kill Treg cells. Therapeutic methods and combination therapies using NEO-201 optionally in combination with another agent are described.
    Type: Application
    Filed: February 13, 2019
    Publication date: January 7, 2021
    Inventors: Philip M. ARLEN, Kwong Y. TSANG, Justin M. DAVID, Massimo FANTINI
  • Publication number: 20200362053
    Abstract: NEO-201 is a humanized IgG1 monoclonal antibody (mAb) that is highly reactive against the majority of tumor tissues from many different carcinomas, including colon, pancreatic, stomach, lung, breast, and uterine cancers, but the overwhelming majority of normal tissues are not recognized by this antibody. Functional assays revealed that NEO-201 is capable of mediating both antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) against tumor cells. Furthermore, the growth of human pancreatic xenograft tumors in vivo was largely attenuated by treatment with NEO-201 both alone and in combination with human peripheral blood mononuclear cells (PBMC) as an effector cell source for ADCC. In vivo biodistribution studies in human tumor xenograft-bearing mice revealed that NEO-201 preferentially accumulates in the tumor but not organ tissue.
    Type: Application
    Filed: November 2, 2018
    Publication date: November 19, 2020
    Inventors: Philip M. ARLEN, Kwong Y. TSANG
  • Patent number: 9169326
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: October 27, 2015
    Assignee: PRECISION BIOLOGICS, INC.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Patent number: 8535667
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: September 17, 2013
    Assignee: Precision Biologics, Inc.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Publication number: 20110158902
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Application
    Filed: January 24, 2011
    Publication date: June 30, 2011
    Applicant: NEOGENIX ONCOLOGY, INC.
    Inventors: Myron ARLEN, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Publication number: 20100310559
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 9, 2010
    Applicant: Neogenix Oncology, Inc.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Patent number: 7763720
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 27, 2010
    Assignee: Neogenix Oncology, Inc.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollnshead, Kwong Y. Tsang
  • Patent number: 7491801
    Abstract: The present invention relates to novel antibodies, antibody fragments and antibody conjugates which display a high degree of selectivity for squamous cell carcinoma antigens including carcinomas of the lung, esophagus and cervix. The present invention relates to both in vivo and in vitro clinical screening methods for diagnosis or prognosis of carcinomas by means of detecting the expression of squamous cell carcinoma antigens in biological samples of the subject using the novel antibodies of the invention. The invention further provides for kits for carrying out the above described screening methods. Additionally, antibody conjugates may be used to efficiently deliver various agents which have anti-tumor effects to the tumor cell. The antibodies of the invention may also be administered to a patient in non-conjugated form to target ADCC to the tumor cell.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: February 17, 2009
    Assignee: International Bioimmune Systems, Inc.
    Inventors: Myron Arlen, Kwong Y. Tsang
  • Publication number: 20080227965
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Application
    Filed: December 17, 2007
    Publication date: September 18, 2008
    Applicant: Neogenix Oncology, Inc.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Patent number: 7314622
    Abstract: The present invention provides for purified or highly pure recombinant monoclonal antibodies that bind to human colorectal and pancreatic carcinoma-associated antigens (CPAA), along with nucleic acid sequences encoding the antibody chains, and the amino acid sequences corresponding to said nucleic acids and uses for said sequences.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: January 1, 2008
    Assignee: Neogenix Oncology, Inc.
    Inventors: Myron Arlen, J. Andrew Bristol, Ariel C. Hollinshead, Kwong Y. Tsang
  • Publication number: 20040136997
    Abstract: The present invention relates to novel antibodies, antibody fragments and antibody conjugates which display a high degree of selectivity for squamous cell carcinoma antigens including carcinomas of the lung, esophagus and cervix. The present invention relates to both in vivo and in vitro clinical screening methods for diagnosis or prognosis of carcinomas by means of detecting the expression of squamous cell carcinoma antigens in biological samples of the subject using the novel antibodies of the invention. The invention further provides for kits for carrying out the above described screening methods. Additionally, antibody conjugates may be used to efficiently deliver various agents which have anti-tumor effects to the tumor cell. The antibodies of the invention may also be administered to a patient in non-conjugated form to target ADCC to the tumor cell.
    Type: Application
    Filed: December 29, 2003
    Publication date: July 15, 2004
    Inventors: Myron Arlen, Kwong Y. Tsang
  • Patent number: 5688657
    Abstract: Monoclonal antibodies, in particular 33.28 and 31.1, and chimeric antibodies, in particular mouse/human chimeric Chi #1 specific for glycoprotein antigens of colon carcinoma-associated antigens which are immunogenic in humans, are disclosed. Such antibodies, and fragments and derivatives thereof, are useful in immunodiagnosis and immunotherapy of human colon, breast, and ovarian cancer, and for purification of antigens which can serve as immunotherapeutic agents. Methods of detecting the colon carcinoma-associated antigen in a sample, and methods for treating subjects having colon, breast, and ovarian carcinomas are disclosed.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 18, 1997
    Assignee: International Bio-Immune Systems, Inc.
    Inventors: Kwong Y. Tsang, Myron Arlen
  • Patent number: 4564517
    Abstract: Non-human animal subjects are inoculated in utero with a preparation consisting essentially of plasma membrane derived from human neoplasma cells and, after birth, further inoculated with a preparation comprising human neoplasma cells. In this manner, the animal subjects are induced to bear a solid tumor which biologically closely simulates the solid tumor in humans, and thus serve as models for evaluating the therapeutic and/or prophylactic effect on solid tumors in humans of various surgical procedures, immunomodulators, chemotherapeutic agents and the like. In particular, the process of the invention can be applied to study of human solid neoplasms such as osteosarcoma, fibrosarcoma, pancreatic adenosarcoma and the like.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: January 14, 1986
    Inventors: Herman H. Fudenberg, Kwong Y. Tsang
  • Patent number: RE39760
    Abstract: Monoclonal antibodies, in particular 33.28 and 31.1, and chimeric antibodies, in particular mouse/humans chimeric Chi #1 specific for glycoprotein antigens of colon carcinoma-associated antigens which are immunogenic in humans, are disclosed. Such antibodies, and fragments and derivatives thereof, are useful in immunodiagnosis and immunotherapy of human colon, breast, and ovarian cancer, and for purification of antigens which can serve as immunotherapeutic agents. Methods of detecting the colon carcinoma-associated antigen in a sample, and methods for treating subjects having colon, breast, and ovarian carcinomas are disclosed.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: August 7, 2007
    Assignee: International Bio-Immune Systems Inc.
    Inventors: Kwong Y. Tsang, Myron Arlen