Patents by Inventor Daniel W. Chan

Daniel W. Chan 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: 20220317126
    Abstract: The present invention provides a protein-based biomarker that is useful in qualifying ovarian cancer status in a patient. In particular, the biomarker of this invention is useful to classify a subject sample as ovarian cancer or non-ovarian cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Application
    Filed: December 17, 2021
    Publication date: October 6, 2022
    Applicants: Aspira Women's Health Inc., The Johns Hopkins University
    Inventors: Zhen ZHANG, Daniel W. CHAN, Eric T. FUNG, Zheng WANG, Fujun ZHANG
  • Patent number: 11255857
    Abstract: The present invention provides a protein-based biomarker that is useful in qualifying ovarian cancer status in a patient. In particular, the biomarker of this invention is useful to classify a subject sample as ovarian cancer or non-ovarian cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 22, 2022
    Assignees: Aspira Women's Health Inc., The Johns Hopkins University
    Inventors: Zhen Zhang, Daniel W. Chan, Eric T. Fung, Zheng Wang, Fujun Zhang
  • Publication number: 20180196054
    Abstract: The present invention provides a protein-based biomarker that is useful qualifying ovarian cancer status to a patient. In particular, the biomarker of this invention is useful to classify a subject sample as ovarian cancer or non-ovarian cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Application
    Filed: November 10, 2017
    Publication date: July 12, 2018
    Applicants: VERMILLION, INC., THE JOHNS HOPKINS UNIVERSITY
    Inventors: ZHEN ZHANG, DANIEL W. CHAN, ERIC T. FUNG, ZHENG WANG, FUJUN ZHANG
  • Patent number: 9891224
    Abstract: The present invention relates to the field of biomarkers. More specifically, the present invention relates to biomarkers useful in diagnosing aggressive prostate cancer. In one embodiment, a method for identifying patients as having or likely to have aggressive prostate cancer comprises the steps of (a) obtaining a biological sample from the patient; (b) performing an assay on the biological sample to detect fucosylated fucosylated DPP-4, sTIE-2, sVEGFR-1, and FUT8; and (c) identifying the patient as having or likely to have aggressive prostate cancer if there is a statistically significant difference in the levels of fucosylated TIMP-1, fucosylated DPP-4, sTIE-2, sVEGFR-1 and FUT8.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: February 13, 2018
    Assignee: The Johns Hopkins University
    Inventors: Danni Li, Daniel W. Chan, Hui Zhang, Xiangchun Wang
  • Patent number: 9816995
    Abstract: The present invention provides a protein-based biomarker that is useful in qualifying ovarian cancer status in a patient. In particular, the biomarker of this invention is useful to classify a subject sample as ovarian cancer or non-ovarian cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: November 14, 2017
    Assignees: Vermillion, Inc., The Johns Hopkins University
    Inventors: Zhen Zhang, Daniel W. Chan, Eric T. Fung, Zheng Wang, Fujun Zhang
  • Patent number: 9594086
    Abstract: The present invention relates to the field of biomarkers and, more specifically, to biomarkers useful in diagnosing aggressive prostate cancer. In specific embodiments, a method for diagnosing aggressive prostate cancer in a patient comprises (a) measuring the levels of one or more biomarkers in a sample collected from the patient; and (b) comparing the levels of the one or more biomarkers with predefined levels of the same biomarkers that correlate to a patient having aggressive prostate cancer and predefined levels of the same biomarkers that correlate to a patient not having aggressive prostate cancer, wherein a correlation to one of the predefined levels provides the diagnosis.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 14, 2017
    Assignee: The Johns Hopkins University
    Inventors: Hui Zhang, Yuan Tian, Daniel W. Chan, Jing Chen
  • Patent number: 9551703
    Abstract: The invention features compositions and methods that are useful for precisely determining the amount of one or more analytes present in a sample. In one aspect, the invention provides a composition for measuring the abundance of one or more target analytes in a sample, where the composition contains a set of detection units for each analyte fixed to a substrate (e.g., a membrane, bead, filter, chip, polymer-based film or glass slide, or other printable surface), where each detection unit contains a discrete amount of a capture agent that specifically binds the target analyte, and the amount of capturing agent varies over the set to form a concentration gradient.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: January 24, 2017
    Assignee: The Johns Hopkins University
    Inventors: Zhen Zhang, Daniel W. Chan
  • Publication number: 20160109455
    Abstract: The present invention provides compositions and methods that provide a high degree of sensitivity and a high degree of specificity for the preoperative assessment of ovarian tumors in a variety of subject's (e.g., pre- and post-menopausal women) having a variety of ovarian cancer types (e.g., clear cell/mucinous, low malignant potential, high malignant potential) and at a variety of disease states (e.g., early and late stage).
    Type: Application
    Filed: May 8, 2014
    Publication date: April 21, 2016
    Applicants: VERMILLION, INC., THE JOHNS HOPKINS UNIVERSITY
    Inventors: DONALD MUNROE, DANIEL W. CHAN, ZHEN ZHANG
  • Publication number: 20160069884
    Abstract: The present invention relates to the field of biomarkers. More specifically, the present invention relates to biomarkers useful in diagnosing aggressive prostate cancer.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: Hui Zhang, Punit Shah, Qing Kay Li, Daniel W. Chan
  • Publication number: 20150276746
    Abstract: The present invention relates to the field of biomarkers. More specifically, the present invention relates to biomarkers useful in diagnosing aggressive prostate cancer. In one embodiment, a method for identifying patients as having or likely to have aggressive prostate cancer comprises the steps of (a) obtaining a biological sample from the patient; (b) performing an assay on the biological sample to detect fucosylated fucosylated DPP-4, sTIE-2, sVEGFR-1, and FUT8; and (c) identifying the patient as having or likely to have aggressive prostate cancer if there is a statistically significant difference in the levels of fucosylated TIMP-1, fucosylated DPP-4, sTIE-2, sVEGFR-1 and FUT8.
    Type: Application
    Filed: January 30, 2013
    Publication date: October 1, 2015
    Inventors: Danni Li, Daniel W. Chan, Hui Zhang, Xiangchun Wang
  • Publication number: 20140274787
    Abstract: The present invention provides a protein-based biomarker that is useful in qualifying ovarian cancer status in a patient. In particular, the biomarker of this invention is useful to classify a subject sample as ovarian cancer or non-ovarian cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicants: Vermillion, Inc., The Johns Hopkins University
    Inventors: ZHEN ZHANG, DANIEL W. CHAN, ERIC T. FUNG, ZHENG WANG, FUJUN ZHANG
  • Publication number: 20140193832
    Abstract: The present invention features novel methods for determining if a subject has prostate cancer. The present invention is based on the development of lectin immunosorbant assays which analyze ?2,6-linked sialylation of total serum PSA by sambucus nigra lectin (SNA) and ?2,3-linked sialylation of total and free serum PSA. These novel assays were used then to conduct a clinical investigation of the potential role of glycoprotein analysis in improving PSA's cancer specificity. The present invention also features kits for determining if a subject has prostate cancer comprising one or more lectins and a PSA specific antibody and instructions for use.
    Type: Application
    Filed: November 26, 2013
    Publication date: July 10, 2014
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Hui Zhang, Danni Li Meany, Daniel W. Chan, Zhen Zhang, Yan Li, Mori J. Sokoll
  • Publication number: 20140155293
    Abstract: The present invention relates to a method of qualifying prostate cancer status in a subject comprising: (a) measuring at least one of the disclosed biomarkers in a sample from the subject and (b) correlating the measurement with prostate cancer status. The invention further relates to kits for qualifying prostate cancer status in a subject.
    Type: Application
    Filed: July 25, 2013
    Publication date: June 5, 2014
    Applicant: The Johns Hopkins University
    Inventors: Daniel W. Chan, Jinong Li, Zhen Zhang
  • Publication number: 20140106369
    Abstract: The present invention relates to the field of biomarkers and, more specifically, to biomarkers useful in diagnosing aggressive prostate cancer. In specific embodiments, a method for diagnosing aggressive prostate cancer in a patient comprises (a) measuring the levels of one or more biomarkers in a sample collected from the patient; and (b) comparing the levels of the one or more biomarkers with predefined levels of the same biomarkers that correlate to a patient having aggressive prostate cancer and predefined levels of the same biomarkers that correlate to a patient not having aggressive prostate cancer, wherein a correlation to one of the predefined levels provides the diagnosis.
    Type: Application
    Filed: March 22, 2012
    Publication date: April 17, 2014
    Applicant: The Johns Hopkins University
    Inventors: Hui Zhang, Yuan Tian, Daniel W. Chan, Jing Chen
  • Patent number: 8682591
    Abstract: The present invention relates to a method of qualifying ovarian cancer status in a subject comprising: (a) measuring at least one biomarker in a sample from the subject and (b) correlating the measurement with ovarian cancer status. The invention further relates to kits for qualifying ovarian cancer status in a subject.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: March 25, 2014
    Assignees: Vermillion, Inc., The Johns Hopkins University
    Inventors: Daniel W. Chan, Zhen Zhang, Eric Fung, Xiao-Ying Meng
  • Publication number: 20140024552
    Abstract: The invention provides methods and compositions for distinguishing ovarian cancer from a benign pelvic mass using two or more of the following biomarkers: IL-6, MMP9, tPA, IGFBP2, MMP7, Tenascin, NAP2, glycodelin, MCSF, MMP2, Inhibin A, uPAR, and EGFR. The methods are useful in distinguishing a benign pelvic mass from ovarian cancer in subjects, particularly in subjects identified as having increased CA125 levels.
    Type: Application
    Filed: February 15, 2012
    Publication date: January 23, 2014
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Zhen Zhang, Daniel W. Chan
  • Patent number: 8603734
    Abstract: The instant invention provides methods and compositions for the detection of prostate cancer is a subject. In one embodiment, a method of detecting prostate cancer in a subject comprises the steps of (a) detecting the presence of at least one biomarker listed in Table 1 in a serum sample, wherein the presence of the biomarker in the serum sample is indicative of prostate cancer.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: December 10, 2013
    Assignee: The Johns Hopkins University
    Inventors: Hui Zhang, Yan Li, Lori J. Sokoll, Zhen Zhang, Daniel W. Chan
  • Patent number: 8440409
    Abstract: The present invention provides a protein-based biomarker, Protein C Inhibitor (PCI) that is useful in qualifying prostate cancer status in a patient. In particular, the biomarker of this invention is useful to classify a subject sample as prostate cancer or non-prostate cancer. The biomarker can be detected by SELDI mass spectrometry.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: May 14, 2013
    Assignee: The Johns Hopkins University
    Inventors: Zhen Zhang, Daniel W. Chan, Carolyn N. Rosenzwelg
  • Publication number: 20120220476
    Abstract: The present invention relates to a method of qualifying ovarian cancer status in a subject comprising: (a) measuring at least one biomarker in a sample from the subject and (b) correlating the measurement with ovarian cancer status. The invention further relates to kits for qualifying ovarian cancer status in a subject.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 30, 2012
    Applicants: VERMILLION, INC.
    Inventors: Daniel W. Chan, Zhen Zhang, Eric Fung, Xiao-Ying Meng
  • Publication number: 20120142554
    Abstract: The invention features compositions and methods that are useful for precisely determining the amount of one or more analytes present in a sample. In one aspect, the invention provides a composition for measuring the abundance of one or more target analytes in a sample, where the composition contains a set of detection units for each analyte fixed to a substrate (e.g.,a membrane, bead, filter, chip, polymer-based film or glass slide, or other printable surface), where each detection unit contains a discrete amount of a capture agent that specifically binds the target analyte, and the amount of capturing agent varies over the set to form a concentration gradient.
    Type: Application
    Filed: August 4, 2010
    Publication date: June 7, 2012
    Applicant: The Johns Hopkins University
    Inventors: Zhen Zhang, Daniel W. Chan