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).
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Publication number: 20220317126Abstract: 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: ApplicationFiled: December 17, 2021Publication date: October 6, 2022Applicants: Aspira Women's Health Inc., The Johns Hopkins UniversityInventors: Zhen ZHANG, Daniel W. CHAN, Eric T. FUNG, Zheng WANG, Fujun ZHANG
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Patent number: 11255857Abstract: 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: GrantFiled: November 10, 2017Date of Patent: February 22, 2022Assignees: Aspira Women's Health Inc., The Johns Hopkins UniversityInventors: Zhen Zhang, Daniel W. Chan, Eric T. Fung, Zheng Wang, Fujun Zhang
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Publication number: 20180196054Abstract: 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: ApplicationFiled: November 10, 2017Publication date: July 12, 2018Applicants: VERMILLION, INC., THE JOHNS HOPKINS UNIVERSITYInventors: ZHEN ZHANG, DANIEL W. CHAN, ERIC T. FUNG, ZHENG WANG, FUJUN ZHANG
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Patent number: 9891224Abstract: 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: GrantFiled: January 30, 2013Date of Patent: February 13, 2018Assignee: The Johns Hopkins UniversityInventors: Danni Li, Daniel W. Chan, Hui Zhang, Xiangchun Wang
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Patent number: 9816995Abstract: 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: GrantFiled: March 18, 2014Date of Patent: November 14, 2017Assignees: Vermillion, Inc., The Johns Hopkins UniversityInventors: Zhen Zhang, Daniel W. Chan, Eric T. Fung, Zheng Wang, Fujun Zhang
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Patent number: 9594086Abstract: 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: GrantFiled: March 22, 2012Date of Patent: March 14, 2017Assignee: The Johns Hopkins UniversityInventors: Hui Zhang, Yuan Tian, Daniel W. Chan, Jing Chen
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Patent number: 9551703Abstract: 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: GrantFiled: August 4, 2010Date of Patent: January 24, 2017Assignee: The Johns Hopkins UniversityInventors: Zhen Zhang, Daniel W. Chan
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Publication number: 20160109455Abstract: 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: ApplicationFiled: May 8, 2014Publication date: April 21, 2016Applicants: VERMILLION, INC., THE JOHNS HOPKINS UNIVERSITYInventors: DONALD MUNROE, DANIEL W. CHAN, ZHEN ZHANG
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Publication number: 20160069884Abstract: The present invention relates to the field of biomarkers. More specifically, the present invention relates to biomarkers useful in diagnosing aggressive prostate cancer.Type: ApplicationFiled: September 9, 2015Publication date: March 10, 2016Inventors: Hui Zhang, Punit Shah, Qing Kay Li, Daniel W. Chan
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Publication number: 20150276746Abstract: 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: ApplicationFiled: January 30, 2013Publication date: October 1, 2015Inventors: Danni Li, Daniel W. Chan, Hui Zhang, Xiangchun Wang
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Publication number: 20140274787Abstract: 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: ApplicationFiled: March 18, 2014Publication date: September 18, 2014Applicants: Vermillion, Inc., The Johns Hopkins UniversityInventors: ZHEN ZHANG, DANIEL W. CHAN, ERIC T. FUNG, ZHENG WANG, FUJUN ZHANG
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Publication number: 20140193832Abstract: 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: ApplicationFiled: November 26, 2013Publication date: July 10, 2014Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: Hui Zhang, Danni Li Meany, Daniel W. Chan, Zhen Zhang, Yan Li, Mori J. Sokoll
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Publication number: 20140155293Abstract: 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: ApplicationFiled: July 25, 2013Publication date: June 5, 2014Applicant: The Johns Hopkins UniversityInventors: Daniel W. Chan, Jinong Li, Zhen Zhang
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Publication number: 20140106369Abstract: 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: ApplicationFiled: March 22, 2012Publication date: April 17, 2014Applicant: The Johns Hopkins UniversityInventors: Hui Zhang, Yuan Tian, Daniel W. Chan, Jing Chen
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Patent number: 8682591Abstract: 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: GrantFiled: February 13, 2012Date of Patent: March 25, 2014Assignees: Vermillion, Inc., The Johns Hopkins UniversityInventors: Daniel W. Chan, Zhen Zhang, Eric Fung, Xiao-Ying Meng
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Publication number: 20140024552Abstract: 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: ApplicationFiled: February 15, 2012Publication date: January 23, 2014Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: Zhen Zhang, Daniel W. Chan
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Patent number: 8603734Abstract: 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: GrantFiled: June 4, 2008Date of Patent: December 10, 2013Assignee: The Johns Hopkins UniversityInventors: Hui Zhang, Yan Li, Lori J. Sokoll, Zhen Zhang, Daniel W. Chan
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Patent number: 8440409Abstract: 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: GrantFiled: September 19, 2006Date of Patent: May 14, 2013Assignee: The Johns Hopkins UniversityInventors: Zhen Zhang, Daniel W. Chan, Carolyn N. Rosenzwelg
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Publication number: 20120220476Abstract: 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: ApplicationFiled: February 13, 2012Publication date: August 30, 2012Applicants: VERMILLION, INC.Inventors: Daniel W. Chan, Zhen Zhang, Eric Fung, Xiao-Ying Meng
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Publication number: 20120142554Abstract: 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: ApplicationFiled: August 4, 2010Publication date: June 7, 2012Applicant: The Johns Hopkins UniversityInventors: Zhen Zhang, Daniel W. Chan