Patents by Inventor Guanghui Chen

Guanghui Chen 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: 8038013
    Abstract: A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.95 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.01 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: October 18, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Guanghui Chen, Henricus Jacobus Cornelis Gommeren, Lawrence Mark Knorr
  • Patent number: 7993523
    Abstract: A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.1 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.0002 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: August 9, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Guanghui Chen, Henricus Jacobus Cornelis Gommeren, Lawrence Mark Knorr
  • Publication number: 20110042316
    Abstract: A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.1 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.0002 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
    Type: Application
    Filed: November 5, 2010
    Publication date: February 24, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Guanghui Chen, Henricus Jacobus Cornelis Gommeren, Lawrence Mark Knorr
  • Publication number: 20090261035
    Abstract: A nonwoven web of fibers that have a number average diameter of less than 1 micron. The web can have a Poisson Ratio of less than about 0.8, a solidity of at least about 20%, a basis weight of at least about 1 gsm, and a thickness of at least 1 micrometer.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 22, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: PANKAJ ARORA, Guanghui Chen, Simon Frisk, David Keith Graham, JR., Robert Anthony Marin, Hageun Suh
  • Publication number: 20090026137
    Abstract: A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.1 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.0002 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
    Type: Application
    Filed: September 18, 2008
    Publication date: January 29, 2009
    Inventors: Guanghui Chen, Henricus Jacobus Cornelis Gommeren, Lawrence Mark Knorr
  • Publication number: 20080306229
    Abstract: Dendritic amphiphilic polymers are contemplated. Most preferably, such polymers will be fabricated in a single step to the final product that may further be derivatized with, among others, biological relevant molecules. In alternative aspects, precursors of such molecules are prepared in a single step, and the precursors are then reacted to the dendritic amphiphilic polymers.
    Type: Application
    Filed: March 5, 2008
    Publication date: December 11, 2008
    Inventors: Zhibin Guan, Guanghui Chen
  • Publication number: 20080217239
    Abstract: A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.95 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.01 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 11, 2008
    Inventors: Guanghui Chen, Henricus Jacobus Cornelis Gommeren, Lawrence Mark Knorr
  • Patent number: 7365171
    Abstract: The present invention provides chemokine-like factor (CKLF) polypeptides with chemotactic and hematopoietic stimulating activities and polynucleotides encoding such polypeptides. Additionally, a method for producing such CKLF polypeptides by recombinant techniques is provided. Also provided are the antibodies and antagonists against such polypeptides. The present invention further disclose a drug compound comprising a therapeutically effective amount of such CKLF polypeptides as well as pharmaceutically acceptable excipients and carriers. Also disclosed are the uses of such CKLF polypeptides and polynucleotides in diagnostics or therapeutics to treat immunodeficiency, hematopoietic diseases and primary tumors.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: April 29, 2008
    Assignees: Beijing Medical University, Beijing Medical University United Biological Engineering Company
    Inventors: Dalong Ma, Wenling Han, Yingme Zhang, Quansheng Song, Chunhui Di, Jiaqiang Huang, Jian Tang, Guanghui Chen
  • Publication number: 20080070463
    Abstract: A nonwoven web of fibers that have a number average diameter of less than 1 micron. The web can have a Poisson Ratio of less than about 0.8, a solidity of at least about 20%, a basis weight of at least about 1 gsm, and a thickness of at least 1 micrometer.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Pankaj Arora, Guanghui Chen, Simon Frisk, David Keith Graham, Robert Anthony Marin
  • Publication number: 20050124043
    Abstract: The present invention provides chemokine-like factor (CKLF) polypeptides with chemotactic and hematopoietic stimulating activities and polynucleotides encoding such polypeptides. Additionally, a method for producing such CKLF polypeptides by recombinant techniques is provided. Also provided are the antibodies and antagonists against such polypeptides. The present invention further disclose a drug compound comprising a therapeutically effective amount of such CKLF polypeptides as well as pharmaceutically acceptable excipients and carriers. Also disclosed are the uses of such CKLF polypeptides and polynucleotides in diagnostics or therapeutics to treat immunodeficiency, hematopoietic diseases and primary tumors.
    Type: Application
    Filed: June 2, 2004
    Publication date: June 9, 2005
    Applicants: Bejing Medical University, Bejing Medical University United Biological Engineering Company
    Inventors: Dalong Ma, Wenling Han, Yingmei Zhang, Quansheng Song, Chunhui Di, Jiaqiang Huang, Jian Tang, Guanghui Chen
  • Patent number: 6800454
    Abstract: The present invention provides chemokine-like factor (CKLF) polypeptides with chemotactic and hematopoietic stimulating activities and polynucleotides encoding such polypeptides. Additionally, a method for producing such CKLF polypeptides by recombinant techniques is provided. Also provided are the antibodies and antagonists against such polypeptides. The present invention further disclose a drug compound comprising a therapeutically effective amount of such CKLF polypeptides as well as pharmaceutically acceptable excipients and carriers. Also disclosed are the uses of such CKLF polypeptides and polynucleotides in diagnostics or therapeutics to treat immunodeficiency, hematopoietic diseases and primary tumors.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: October 5, 2004
    Assignees: Beijing Medical University, Beijing Medical University United Biological Engineering Company
    Inventors: Dalong Ma, Wenling Han, Yingmei Zhang, Quansheng Song, Chunhui Di, Jiaqiang Huang, Jian Tang, Guanghui Chen
  • Publication number: 20020001828
    Abstract: The present invention provides chemokine-like factor (CKLF) polypeptides with chemotactic and hematopoietic stimulating activities and polynucleotides encoding such polypeptides. Additionally, a method for producing such CKLF polypeptides by recombinant techniques is provided. Also provided are the antibodies and antagonists against such polypeptides. The present invention further disclose a drug compound comprising a therapeutically effective amount of such CKLF polypeptides as well as pharmaceutically acceptable excipients and carriers. Also disclosed are the uses of such CKLF polypeptides and polynucleotides in diagnostics or therapeutics to treat immunodeficiency, hematopoietic diseases and primary tumors.
    Type: Application
    Filed: March 7, 2001
    Publication date: January 3, 2002
    Inventors: Dalong Ma, Wenling Han, Yingmei Zhang, Quansheng Song, Chunhui Di, Jiaqiang Huang, Jian Tang, Guanghui Chen