Patents by Inventor Kaw-Yan Chua

Kaw-Yan Chua 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: 9447154
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: September 20, 2016
    Assignee: MERCK PATENT GMBH
    Inventors: Wayne R. Thomas, Kaw-Yan Chua, Bruce L. Rogers, Mei-chang Kuo
  • Patent number: 8541000
    Abstract: The present invention relates to a new variant of the group 2 allergen from the house dust mite Dermatophagoides pteronyssinus, named Der p 2 variant, and uses thereof. The new variant exhibits cDNA and protein sequence diversity from other known Der p 2 variants.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: September 24, 2013
    Inventors: Kaw Yan Chua, Keh-Liang Lin, I-Chun Kuo, Chiung-Hui Huang
  • Patent number: 8349334
    Abstract: We describe an Fve polypeptide being a fragment, homologue, variant or derivative of Fve protein, which comprises at least one biological activity of Fve protein. uses of such a polypeptide, etc, and nucleic acids encoding these, in the treatment and prevention of allergy and cancer are also disclosed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 8, 2013
    Assignees: National University of Singapore, Agency for Science and Research
    Inventors: Kaw Yan Chua, See Voon Seow, Prasanna Ratnakar Kolatkar
  • Patent number: 8287875
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 16, 2012
    Assignee: Merck Patent GmbH
    Inventors: Wayne R. Thomas, Kaw-Yan Chua, Bruce L. Rogers, Mei-Chang Kuo
  • Publication number: 20120003259
    Abstract: We describe an Fve polypeptide being a fragment, homologue, variant or derivative of Fve protein, which comprises at least one biological activity of Fve protein. uses of such a polypeptide, etc, and nucleic acids encoding these, in the treatment and prevention of allergy and cancer are also disclosed.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 5, 2012
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Kaw Yan Chua, See Voon Seow, Prasanna Ratnakar Kolatkar
  • Publication number: 20110318274
    Abstract: The present invention relates to a new variant of the group 2 allergen from the house dust mite Dermatophagoides pteronyssinus, named Der p 2 variant, and uses thereof. The new variant exhibits cDNA and protein sequence diversity from other known Der p 2 variants.
    Type: Application
    Filed: December 30, 2008
    Publication date: December 29, 2011
    Inventors: Kaw Yan Chua, Keh-Liang Lin, I-Chun Kuo, Chiung-Hui Huang
  • Patent number: 8003382
    Abstract: Isolated nucleic acids encoding allergens of the species Dermatophagoides pteronyssinus and Dermatophagoides farinae, Der p VII and Der f VII, respectively, are disclosed. A cDNA encoding a peptide having a Der p VII activity and a predicted molecular weight of about 22, 177 daltons is described. A cDNA encoding a peptide having Der f VII activity is also described. The nucleic acids of the invention can be used as probes to detect the presence of Der p VII or Der f VII nucleic acid in a sample or for the recombinant production of peptides having a Der p VII or Der f VII activity. Peptides having a Der p VII or Der f VII activity can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mite allergens.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 23, 2011
    Assignee: Merck Patent GmbH
    Inventors: Wayne R. Thomas, Kaw-Yan Chua
  • Patent number: 7998701
    Abstract: We describe an Fve polypeptide being a fragment, homologue, variant or derivative of Fve protein, which comprises at least one biological activity of Fve protein. Uses of such a polypeptide, etc, and nucleic acids encoding these, in the treatment and prevention of allergy and cancer are also disclosed.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 16, 2011
    Assignees: National University of Singapore, Agency for Science, Technology and Research (A*STAR)
    Inventors: Kaw Yan Chua, See Voon Seow, Prasanna Ratnakar Kolatkar
  • Publication number: 20110117116
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Application
    Filed: January 15, 2010
    Publication date: May 19, 2011
    Applicant: MERCK PATENT GmbH
    Inventors: Wayne R. THOMAS, Kaw-Yan Chua, Bruce L. Rogers, Mei-chang Kuo
  • Publication number: 20110059522
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Application
    Filed: January 23, 2009
    Publication date: March 10, 2011
    Applicant: Merck Patent GmbH
    Inventors: Wayne R. THOMAS, Kaw-Yan Chua, Bruce L. Rogers, Mei-chang Kuo
  • Patent number: 7666429
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: February 23, 2010
    Assignee: Merck Patent GmbH
    Inventors: Wayne R. Thomas, Kaw-Yan Chua, Bruce L. Rogers, Mei-Chang Kuo
  • Publication number: 20090169582
    Abstract: The invention relates to recombinant lactobacillus, use of the same and a pharmaceutical composition including the same. The recombinant lactobacillus includes a heterologous nucleic acid sequence. The heterologous nucleic acid sequence encodes at least an immunogenic fragment of the mite allergens Der p 1, Der p 2, or Blo t 5, or an immunogenic homolog thereof. A respective fragment of Der p 1 includes at least 8% of the amino acid sequence of the mite allergen. A method of modulating the immune response to an allergen in a mammal as well as a pharmaceutical composition and a kit are also disclosed.
    Type: Application
    Filed: April 4, 2007
    Publication date: July 2, 2009
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Kaw Yan Chua, Lay Hong Renee Lim, Li Kiang Tan
  • Publication number: 20090130130
    Abstract: There is provided an isolated polypeptide, derivative, isoform and/or fragment thereof, wherein the polypeptide is a mutant of a Group 5 allergen. There are also provided pharmaceutical compositions(s) and vaccine(s) for the treatment of subjects allergic to at least one Group 5 allergen.
    Type: Application
    Filed: June 9, 2006
    Publication date: May 21, 2009
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Kaw Yan Chua, Fong Cheng Yi
  • Publication number: 20060008873
    Abstract: Isolated DNA encoding allergens of Dermatophagoides (house dust mites) particularly of the species Dermatophagoides farinae and Dermatophagolides pteronyssinus, which are protein allergens or peptides which include at least one epitope of the protein allergen. In particular, DNA encoding two major D. farinae allergens, Der f I and Der f II and DNA encoding a D. pteronyssinus allergen, Der p I. In addition, the proteins or peptides encoded by the isolated DNA, their use as diagnostic and therapeutic reagents and methods of diagnosing and treating sensitivity to house dust mite allergens.
    Type: Application
    Filed: December 23, 2003
    Publication date: January 12, 2006
    Inventors: Wayne Thomas, Kaw-Yan Chua
  • Publication number: 20050260218
    Abstract: Isolated nucleic acids encoding allergens of the species Dermatophagoides pteronyssinus and Dermatophagoides farinae, Der p VII and Der f VII, respectively, are disclosed. A cDNA encoding a peptide having a Der p VII activity and a predicted molecular weight of about 22, 177 daltons is described. A cDNA encoding a peptide having Der f VII activity is also described. The nucleic acids of the invention can be used as probes to detect the presence of Der p VII or Der f VII nucleic acid in a sample or for the recombinant production of peptides having a Der p VII or Der f VII activity. Peptides having a Der p VII or Der f VII activity can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mite allergens.
    Type: Application
    Filed: March 17, 2005
    Publication date: November 24, 2005
    Inventors: Wayne Thomas, Kaw-Yan Chua
  • Patent number: 6905845
    Abstract: Isolated nucleic acids encoding allergens of the species Dermatophagoides pteronyssinus and Dermatophagoides farinae, Der p VII and Der f VII, respectively, are disclosed. A cDNA encoding a peptide having a Der p VII activity and a predicted molecular weight of about 22, 177 daltons is described. A cDNA encoding a peptide having Der f VII activity is also described. The nucleic acid of the invention can be used as probes to detect the presence of Der p VII or Der f VII nucleotide acid in a sample or for the recombinant production of peptides having a Der p VII or Der f VII activity. Peptides having a Der p VII or Der f VII activity can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mite allergens.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: June 14, 2005
    Assignee: Heska Corporation
    Inventors: Wayne Robert Thomas, Kaw-Yan Chua
  • Publication number: 20050123569
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Application
    Filed: May 14, 2004
    Publication date: June 9, 2005
    Inventors: Wayne Thomas, Kaw-Yan Chua, Bruce Rogers, Mei-chang Kuo
  • Patent number: 6849427
    Abstract: A novel protein allergen Der p VII of Dermatophagoides pteronyssinus is described. A cDNA clone encoding Der p VII was isolated from a ?gt11 library of D. pteronyssinus cDNA. The nucleic acid sequence of Der p VII encodes a 198 residue mature processed protein having a predicted molecular weight of 22,177 daltons. Der p VII protein may be used as the active ingredient in therapeutic composition for the treatment of sensitivity to house dust mites. The protein may also be used in methods of diagnosing such sensitivity.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: February 1, 2005
    Assignee: ImmuLogic Pharmaceutical Corp.
    Inventors: Wayne Robert Thomas, Kaw-Yan Chua
  • Patent number: 6752991
    Abstract: Isolated nucleic acids encoding an allergen of Dermatophagoides pteronyssinus, Der p III, are disclosed. A cDNA encoding a peptide having a Der p III activity and a predicted molecular weight of about 24,985 daltons is also described. The nucleic acids can be used as probes to detect the presence of Der p III nucleic acid in a sample or for the recombinant production of peptides having an activity of Der p III. Peptides having an activity of Der p III can be used in compositions suitable for pharmaceutical administration or methods of diagnosing sensitivity to house dust mites.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 22, 2004
    Assignee: Immulogic Pharmaceutical Co.
    Inventors: Wayne R. Thomas, Kaw-Yan Chua, Bruce L. Rogers, Mei-chang Kuo
  • Patent number: 6689876
    Abstract: Isolated DNA encoding allergens of Dermatophagoides (house dust mites) particularly of the species Dermatophagoides farinae and Dermatophagoides pteronyssinus, which are protein allergens or peptides which include at least one epitope of the protein allergen. In particular, DNA encoding two major D. farinae allergens, Der f I and Der f II and DNA encoding a D. pteronyssinus allergen, Der p I. In addition, the proteins or peptides encoded by the isolated DNA, their use as diagnostic and therapeutic reagents and methods of diagnosing and treating sensitivity to house dust mite allergens.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: February 10, 2004
    Assignee: Immulogic Pharmaceutical Corporation
    Inventors: Wayne Robert Thomas, Kaw-Yan Chua