Patents by Inventor Guoliang Tao

Guoliang Tao 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: 7776543
    Abstract: This invention relates generally to the field of moiety or molecule analysis, isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a substrate; and b) a photorecognizable coding pattern on the substrate. Preferably, the microdevice does not comprise an anodized metal surface layer. Methods and kits for isolating, detecting and manipulating moieties, and synthesizing libraries using the microdevices are also provided. The invention further provides two-dimensional optical encoders and uses thereof.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 17, 2010
    Assignees: Aviva Biosciences Corporation, Tsinghua University, CAPTIALBIO Corporation
    Inventors: Lei Wu, Xiaobo Wang, Guoliang Tao, Junquan Xu, Jing Cheng, Mingxiang Huang, Baoquan Sun, Wei Shao, Litian Liu, Depu Chen, David M. Rothwarf, Weiping Yang
  • Patent number: 7718419
    Abstract: This invention relates generally to the field of moiety or molecule isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: May 18, 2010
    Assignee: Aviva Biosciences Corporation
    Inventors: Lei Wu, Xiaobo Wang, Guoliang Tao, Junquan Xu, Jing Cheng, Mingxian Huang, Baoquan Sun, Wei Shao, Litian Liu, Depu Chen, David M. Rothwarf, Weiping Yang
  • Publication number: 20090263370
    Abstract: Methods for treating or preventing a tachykinin-mediated disease, a skin disorder, or a symptom thereof in a mammal by administering to a mammal in need thereof cholinesterase or a pharmaceutical composition of cholinesterase.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 22, 2009
    Inventors: Guoliang TAO, Hanhong XU
  • Publication number: 20080206757
    Abstract: The present invention provides methods and compositions for isolating and detecting rare cells from a biological sample containing other types of cells. In particular, the present invention includes a debulking step that uses a microfabricated filters for filtering fluid samples and the enriched rare cells can be used in a downstream process such as identifies, characterizes or even grown in culture or used in other ways. The invention also include a method of determining the aggressiveness of the tumor or of the number or proportion of cancer cells in the enriched sample by detecting the presence or amount of telomerase activity or telomerase nucleic acid or telomerase expression after enrichment of rare cells.
    Type: Application
    Filed: August 20, 2007
    Publication date: August 28, 2008
    Inventors: Ping LIN, Andrea Ghetti, Wenge Shi, Mengjia Tang, Gioulnar I. Harvie, Huimin Tao, Guoliang Tao, Lei Wu, David Cerny, Jia Xu
  • Publication number: 20080200349
    Abstract: This invention relates generally to the field of moiety or molecule isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.
    Type: Application
    Filed: August 20, 2007
    Publication date: August 21, 2008
    Applicants: AVIVA BIOSCIENCES CORPORATION, TSINGHUA UNIVERSITY, CAPITAL BIOCHIP CORPORATION
    Inventors: Lei Wu, Xiaobo Wang, Guoliang Tao, Junquan Xu, Jing Cheng, Mingxiang Huang, Baoquan Sun, Wei Shao, Litian Liu, Depu Chen, David M. Rothwarf, Weiping Yang
  • Publication number: 20080057505
    Abstract: The present invention provides methods and compositions for isolating and detecting rare cells from a biological sample containing other types of cells. In particular, the present invention includes a debulking step that uses a microfabricated filters for filtering fluid samples and the enriched rare cells can be used in a downstream process such as identifies, characterizes or even grown in culture or used in other ways. The invention also include a method of determining the aggressiveness of the tumor or of the number or proportion of cancer cells in the enriched sample by detecting the presence or amount of telomerase activity or telomerase nucleic acid or telomerase expression after enrichment of rare cells.
    Type: Application
    Filed: July 13, 2007
    Publication date: March 6, 2008
    Inventors: Ping Lin, Andrea Ghetti, Wenge Shi, Mengjia Tang, Gioulnar Harvie, Huimin Tao, Guoliang Tao, Lei Wu, David Cerny, Jia Xu
  • Publication number: 20070202536
    Abstract: The present invention includes methods of enriching rare cells, such as cancer cells, from biological samples, such as blood samples. The methods include performing at least one debulking step on a blood sample and selectively removing at least one type undesirable component from the blood sample to obtain a blood sample that is enriched in a rare cell of interest. In some embodiments magnetic beads coupled to specific binding members are used to selectively removed components.
    Type: Application
    Filed: August 2, 2006
    Publication date: August 30, 2007
    Inventors: Douglas Yamanishi, Paul Hujsak, Sara Snyder, George Walker, Junquan Xu, Mingxian Huang, Guoliang Tao, Lei Wu, Xiaobo Wang, Joe Ouyang, Charina Schmitigal, Samantha O'Neill, Jing Cheng, Jia Xu
  • Patent number: 7166443
    Abstract: The present invention recognizes that diagnosis and prognosis of many conditions can depend on the enrichment of rare cells from a complex fluid sample. In particular, the enrichment of fetal cells from maternal samples, such as maternal blood samples, can greatly aid in the detection of fetal abnormalities or a variety of genetic conditions. In addition, the present invention recognizes that the enrichment of rare malignant cells from patient samples, can aid in diagnosis, prognosis, and development of therapeutic modalities for patients. The invention includes microfabricated filters for filtering fluid samples and methods of enriching rare cells of fluid samples using microfabricated filters of the present invention. The invention also includes solutions for the selective sedimentation of red blood cells (RBCs) from a blood sample and methods of using selective RBC sedimentation solutions for enriching rare cells of a fluid sample.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: January 23, 2007
    Assignee: Aviva Biosciences Corporation
    Inventors: George Walker, Junquan Xu, Douglas Yamanishi, Paul Hujsak, Lei Wu, Mingxian Huang, Guoliang Tao, Sara Snyder, Charina Yap
  • Publication number: 20060252054
    Abstract: The present invention recognizes that diagnosis and prognosis of many conditions can depend on the enrichment of rare cells, especially tumor cells, from a complex fluid sample such as a blood sample. In particular, the present invention is directed to methods and compositions for detecting a non-hematopoietic cell, e.g., a non-hematopoietic tumor cell, in a blood sample via, inter alia, removing red blood cells (RBCs) from a blood sample using a non-centrifugation procedure, removing white blood cells (WBCs) from said blood sample to enrich a non-hematopoietic cell, if any, from said blood sample; and assessing the presence, absence and/or amount of said enriched non-hematopoietic cell.
    Type: Application
    Filed: October 31, 2005
    Publication date: November 9, 2006
    Inventors: Ping Lin, Douglas Yamanishi, Paul Hujsak, Sara Snyder, George Walker, Junguan Xu, Mingxian Huang, Guoliang Tao, Lei Wu, Xiaobo Wang, Joe Ouyang, Charina Schmitigal, Samantha O'Neill, Jing Cheng, Elizabeth Voung, Jia Xu
  • Patent number: 6949355
    Abstract: The present invention recognizes that diagnosis and prognosis of many conditions can depend on the enrichment of rare cells from a complex fluid sample. In particular, the enrichment of fetal cells from maternal samples, such as maternal blood samples, can greatly aid in the detection of fetal abnormalities or a variety of genetic conditions. In addition, the present invention recognizes that the enrichment of rare malignant cells from patient samples, can aid in diagnosis, prognosis, and development of therapeutic modalities for patients. A first aspect of the present invention is a microfabricated filter for filtering a fluid sample. A microfabricated filter of the present invention comprises at least one tapered pore, and preferably comprises at least two tapered pores whose variation in size is 20% or less. The present invention also includes a method of enriching rare cells of a fluid sample using a microfabricated filter of the present invention.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: September 27, 2005
    Assignee: AVIVA Biosciences
    Inventors: Douglas Yamanishi, Paul Hujsak, Zhaohuai Yang, J{dot over (u)}nquan Xu, Xiaobo Wang, Lei Wu, Mingxian Huang, Guoliang Tao, Jing Cheng
  • Publication number: 20050058990
    Abstract: The present invention provides biochips for ion transport measurement, ion transport measuring devices that comprise biochips, and methods of using ion transport measuring devices and biochips that allow for the direct analysis of ion transport functions or properties. The present invention provides biochips, devices, apparatuses, and methods that allow for automated detection of ion transport functions or properties. The present invention also provides methods of making biochips and devices for ion transport measurement that reduce the cost and increase the efficiency of manufacture, as well as improve the performance of the biochips and devices. These biochips and devices are particularly appropriate for automating the detection of ion transport functions or properties, particularly for screening purposes.
    Type: Application
    Filed: June 1, 2004
    Publication date: March 17, 2005
    Inventors: Antonio Guia, Jia Xu, Lei Wu, Khachonesin Sithiphong, Maria Spassova, Huimin Tao, George Walker, Mingxian Huang, Guoliang Tao, Steven Saya, Glenn Walker, Zoya Zozulya
  • Publication number: 20040142463
    Abstract: The present invention recognizes that diagnosis and prognosis of many conditions can depend on the enrichment of rare cells from a complex fluid sample. In particular, the enrichment of fetal cells from maternal samples, such as maternal blood samples, can greatly aid in the detection of fetal abnormalities or a variety of genetic conditions. In addition, the present invention recognizes that the enrichment of rare malignant cells from patient samples, can aid in diagnosis, prognosis, and development of therapeutic modalities for patients. The invention includes microfabricated filters for filtering fluid samples and methods of enriching rare cells of fluid samples using microfabricated filters of the present invention. The invention also includes solutions for the selective sedimentation of red blood cells (RBCs) from a blood sample and methods of using selective RBC sedimentation solutions for enriching rare cells of a fluid sample.
    Type: Application
    Filed: November 4, 2003
    Publication date: July 22, 2004
    Inventors: George Walker, Junquan Xu, Douglas Yamanishi, Paul Hujsak, Lei Wu, Mingxian Huang, Guoliang Tao, Sara Snyder, Charina Yap
  • Publication number: 20030134416
    Abstract: The present invention recognizes that diagnosis and prognosis of many conditions can depend on the enrichment of rare cells from a complex fluid sample. In particular, the enrichment of fetal cells from maternal samples, such as maternal blood samples, can greatly aid in the detection of fetal abnormalities or a variety of genetic conditions. In addition, the present invention recognizes that the enrichment of rare malignant cells from patient samples, can aid in diagnosis, prognosis, and development of therapeutic modalities for patients.
    Type: Application
    Filed: October 10, 2002
    Publication date: July 17, 2003
    Inventors: Douglas Yamanishi, Paul Hujsak, Zhaohuai Yang, Junquan Xu, Xiaobo Wang, Lei Wu, Mingxian Huang, Guoliang Tao, Jing Cheng