Patents by Inventor Hoong Yeet Yeang

Hoong Yeet Yeang 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: 7994288
    Abstract: This invention relates to allergenic proteins of natural rubber latex in substantially purified form, their production and their use, together with monoclonal antibodies developed against those allergenic proteins, in assays for the qualitative and quantitative determination of the levels of the allergenic proteins in natural rubber latex or in products made from latex. Assays for identifying and/or quantitating antibodies in blood or blood products that mediate the occurrence of an allergic reaction induced by natural rubber latex are also provided, together with in vivo and in vitro diagnostic tests for detecting hypersensitivity to natural rubber latex and which involve use of the aforesaid allergenic proteins. The invention also provides for the use of the aforesaid allergens as de-sensitising agents in the treatment of latex protein allergy. There is still further provided a method for removing allergenic proteins from latex products.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: August 9, 2011
    Assignees: The Board of the Rubber Research Institute of Malaysia, Universiti Sains Malaysia
    Inventors: Mary Jane Cardosa, Hamid Sharifah, Shirley Samuel-Verghese, Elumalai Sunderasan, Hoong Yeet Yeang, Hamzah Samsidar
  • Publication number: 20110081349
    Abstract: The present invention relates to a protein found in natural rubber that can induce an allergic reaction in persons who have been sensitised to it. The invention provides for the process of isolating and purifying the protein and describes the characteristics of the protein, including its molecular weight, isoelectric point, amino acid sequence and allergenicity. The invention also describes the isolation and cloning a the DNA that encodes the protein. The production of the recombinant version of the protein using a protein expression vector is described.
    Type: Application
    Filed: March 26, 2010
    Publication date: April 7, 2011
    Inventors: Siti Arija Mad Arif, Nyu Ping Chew, Hoong Yeet Yeang
  • Patent number: 7732566
    Abstract: The present invention relates to a protein found in natural rubber that can induce an allergic reaction in persons who have been sensitised to it. The invention provides for the process of isolating and purifying the protein and describes the characteristics of the protein, including its molecular weight, isoelectric point, amino acid sequence and allergenicity. The invention also describes the isolation and cloning a the DNA that encodes the protein. The production of the recombinant version of the protein using a protein expression vector is described.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: June 8, 2010
    Assignee: Malaysian Rubber Board
    Inventors: Siti Arija Mad Ariff, Nyu Ping Chew, Hoong Yeet Yeang
  • Publication number: 20090285859
    Abstract: This invention relates to allergenic proteins of natural rubber latex in substantially purified form, their production and their use, together with monoclonal antibodies developed against those allergenic proteins, in assays for the qualitative and quantitative determination of the levels of the allergenic proteins in natural rubber latex or in products made from latex. Assays for identifying and/or quantitating antibodies in blood or blood products that mediate the occurrence of an allergic reaction induced by natural rubber latex are also provided, together with in vivo and in vitro diagnostic tests for detecting hypersensitivity to natural rubber latex and which involve use of the aforesaid allergenic proteins. The invention also provides for the use of the aforesaid allergens as de-sensitising agents in the treatment of latex protein allergy. There is still further provided a method for removing allergenic proteins from latex products.
    Type: Application
    Filed: July 15, 2009
    Publication date: November 19, 2009
    Inventors: Mary Jane Cardosa, Hamid Sharifah, Shirley Samuel-Verghese, Elumalai Sunderasan, Hoong Yeet Yeang, Hamzah Samsidar
  • Patent number: 7576184
    Abstract: This invention relates to allergenic proteins of natural rubber latex in substantially purified form, their production and their use, together with monoclonal antibodies developed against those allergenic proteins, in assays for the qualitative and quantitative determination of the levels of the allergenic proteins in natural rubber latex or in products made from latex. Assays for identifying and/or quantitating antibodies in blood or blood products that mediate the occurrence of an allergic reaction induced by natural rubber latex are also provided, together with in vivo and in vitro diagnostic tests for detecting hypersensitivity to natural rubber latex and which involve use of the aforesaid allergenic proteins. The invention also provides for the use of the aforesaid allergens as de-sensitising agents in the treatment of latex protein allergy. There is still further provided a method for removing allergenic proteins from latex products.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: August 18, 2009
    Assignees: The Board of the Rubber Research Institute of Malaysia, Universiti Sains Malaysia
    Inventors: Mary Jane Cardosa, Hamid Sharifah, Shirley Samuel-Verghese, Elumalai Sunderasan, Hoong Yeet Yeang, Hamzah Samsidar
  • Publication number: 20080292635
    Abstract: The present invention relates to a protein found in natural rubber that can induce an allergic reaction in persons who have been sensitised to it. The invention provides for the process of isolating and purifying the protein and describes the characteristics of the protein, including its molecular weight, isoelectric point, amino acid sequence and allergenicity. The invention also describes the isolation and cloning a the DNA that encodes the protein. The production of the recombinant version of the protein using a protein expression vector is described.
    Type: Application
    Filed: December 11, 2007
    Publication date: November 27, 2008
    Applicant: MALAYSIAN RUBBER BOARD
    Inventors: Siti Arija Mad Arif, Nyu Ping Chew, Hoong Yeet Yeang
  • Patent number: 7329512
    Abstract: The present invention relates to a protein found in natural rubber that can induce an allergic reaction in persons who have been sensitised to it. The invention provides for the process of isolating and purifying the protein and describes the characteristics of the protein, including its molecular weight, isoelectric point, amino acid sequence and allergenicity. The invention also describes the isolation and cloning a the DNA that encodes the protein. The production of the recombinant version of the protein using a protein expression vector is described.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 12, 2008
    Assignee: Malaysian Rubber Board
    Inventors: Siti Arija Mad Arif, Nyu Ping Chew, Hoong Yeet Yeang
  • Publication number: 20040171812
    Abstract: The present invention relates to a protein found in natural rubber that can induce an allergic reaction in persons who have been sensitised to it. The invention provides for the process of isolating and purifying the protein and describes the characteristics of the protein, including its molecular weight, isoelectric point, amino acid sequence and allergenicity. The invention also describes the isolation and cloning a the DNA that encodes the protein. The production of the recombinant version of the protein using a protein expression vector is described.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: MALAYSIAN RUBBER BOARD
    Inventors: Siti Arija Mad Arif, Nyu Ping Chew, Hoong Yeet Yeang
  • Patent number: 6759517
    Abstract: This invention relates to allergenic proteins of natural rubber latex in substantially purified form, their production and their use, together with monoclonal antibodies developed against those allergenic proteins, in assays for the qualitative and quantitative determination of the levels of the allergenic proteins in natural rubber latex or in products made from latex. Assays for identifying and/or quantitating antibodies in blood or blood products that mediate the occurrence of an allergic reaction induced by natural rubber latex are also provided, together with in vivo and in vitro diagnostic tests for detecting hypersensitivity to natural rubber latex and which involve use of the aforesaid allergenic proteins. The invention also provides for the use of the aforesaid allergens as de-sensitizing agents in the treatment of latex protein allergy. There is still further provided a method for removing allergenic proteins from latex products.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: July 6, 2004
    Assignees: Universiti Sains Malaysia, The Board of the Rubber Research Institute of Malaysia
    Inventors: Mary Jane Cardosa, Hamid Sharifah, Shirley Samuel-Verghese, Elumalai Sunderasan, Hoong Yeet Yeang, Hamzah Samsidar