Patents by Inventor Jijun Ge

Jijun Ge 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).

  • HYDROPHILIC MEMBRANES
    Publication number: 20230017950
    Abstract: The present application relates to an unsupported, permanently hydrophilic filtration membrane, and its method of formation. The membrane comprises a polymeric matrix material and a cross-linked polyoxazoline hydrophilic additive blended throughout said matrix material.
    Type: Application
    Filed: November 18, 2020
    Publication date: January 19, 2023
    Inventors: Jijun GE, Xiaozhu ZHOU, Gabriel TKACIK
  • MICROFILTRATION MEMBRANE
    Publication number: 20230015162
    Abstract: The present application relates to a multizone, unsupported, microporous, high throughput membrane. The membrane includes a first microporous zone, a second microporous zone, and a third microporous zone, where the third microporous zone is positioned between the first and second microporous zones, with the first, second, and third microporous zones being integral with one another. Further aspects of the present application include a process for making the membrane and a filtration cartridge with the membrane of the present application.
    Type: Application
    Filed: November 18, 2020
    Publication date: January 19, 2023
    Inventors: Jijun GE, Xiaozhu ZHOU
  • Atmospheric pressure microwave plasma treated porous membranes
    Patent number: 8789708
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: July 29, 2014
    Assignee: Entegris, Inc.
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • Atmospheric pressure microwave plasma treated porous membranes
    Patent number: 8668093
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 11, 2014
    Assignee: Entegris, Inc.
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • Atmospheric Pressure Microwave Plasma Treated Porous Membranes
    Publication number: 20140048476
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicant: Entegris, Inc.
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • Electron Source Modification Of Microporous Halocarbon Filter Membranes
    Publication number: 20130043183
    Abstract: Versions of the invention include electron beam treated microporous halocarbon membranes, particularly fluoro-carbon membranes, and methods for treating one or more surfaces of a polymeric porous halocarbon membrane with electron beams. The modified porous membrane is stable, resists dewetting, and retains its mechanical properties and chemical inertness.
    Type: Application
    Filed: April 26, 2011
    Publication date: February 21, 2013
    Inventors: Jijun Ge, Wai Ming Choi
  • ATMOSPHERIC PRESSURE MICROWAVE PLASMA TREATED POROUS MEMBRANES
    Publication number: 20110210063
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Application
    Filed: May 11, 2011
    Publication date: September 1, 2011
    Inventors: Jijun GE, Alketa Gjoka, Jieh-Hwa Shyu
  • Atmospheric pressure microwave plasma treated porous membranes
    Patent number: 7963401
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: June 21, 2011
    Assignee: Entegris, Inc.
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • ATMOSPHERIC PRESSURE MICROWAVE PLASMA TREATED POROUS MEMBRANES
    Publication number: 20100320142
    Abstract: Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.
    Type: Application
    Filed: March 28, 2007
    Publication date: December 23, 2010
    Inventors: Jijun Ge, Alketa Gjoka, Jieh-Hwa Shyu
  • Asymmetric gel-filled microporous membranes
    Patent number: 7247370
    Abstract: The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membrane than the density at the other major surface. The membranes are useful for separating matter from liquids and display good flux and good rejection at low pressure.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 24, 2007
    Assignee: McMaster University
    Inventors: Ronald F. Childs, Alicja M. Mika, Jijun Ge, Chris McCrory
  • Asymmetric gel-filled microporous membranes
    Publication number: 20050011826
    Abstract: The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membrane than the density at the other major surface. The membranes are useful for separating matter from liquids and display good flux and good rejection at low pressure.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 20, 2005
    Inventors: Ronald Childs, Alieja Mika, Jijun Ge, Chris McCrory