Patents by Inventor Shao-An Cheng

Shao-An Cheng 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: 20120138479
    Abstract: The present invention can provide an electrode member having a substrate member and a coating member. The substrate member can be made of a material selected from the group consisting of titanium, gold coated titanium and other inert conducting materials. The coating member can have a tin dioxide modified by antimony. The electrode member of the present invention can be used for direct generation of ozone in water or through water into a gaseous state.
    Type: Application
    Filed: February 10, 2012
    Publication date: June 7, 2012
    Inventors: SHAO-AN CHENG, KWONG-YU CHAN, WAI-KIT FUNG
  • Patent number: 7459487
    Abstract: The present invention provides a polymer composite membrane having a polymer membrane and a poly(furfuryl alcohol) filling internal pores of the polymer membrane. The polymer composite membrane can have a high proton conductivity and/or a reduced methanol permeability and can be used in fuel cells, electrochemical sensor, and the like. The present invention also provides a method of making a polymer composite membrane, by providing a perfluorosulfonic polymer member, subjecting the perfluorosulfonic polymer member to a furan-based monomer, and polymerizing the furan-based monomer to obtain a polymer composite membrane having a high proton conductivity and/or a reduced methanol permeability.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: December 2, 2008
    Assignee: The University of Hong Kong
    Inventors: Jin Liu, Huanting Wang, Shao-An Cheng, Kwong-Yu Chan
  • Publication number: 20080257750
    Abstract: The present invention can provide an electrode member having a substrate member and a coating member. The substrate member can be made of a material selected from the group consisting of titanium, gold coated titanium and other inert conducting materials. The coating member can have a tin dioxide modified by antimony. The electrode member of the present invention can be used for direct generation of ozone in water or through water into a gaseous state.
    Type: Application
    Filed: April 30, 2008
    Publication date: October 23, 2008
    Inventors: Shao-An CHENG, Kwong-Yu Chan, Wai Kit Fung
  • Patent number: 7344801
    Abstract: An electrochemical device such as a battery and a fuel cell having two electrolytes between the anode and the cathode. The electrochemical device is preferably arranged with an alkaline electrolyte in contact with the anode and an acidic electrolyte in contact with the cathode. The electrolytes are separated by a bipolar membrane that preferably also provides ionic conductivity between the two electrolytes and also generates a supply of protons and hydroxide anions. The electrochemical device achieves fifty percent higher operating voltage and power compared to fuel cells with a single electrolyte.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: March 18, 2008
    Inventors: Shao-An Cheng, Kwong-Yu Chan
  • Publication number: 20060183809
    Abstract: The present invention provides a polymer composite membrane having a polymer membrane and a poly(furfuryl alcohol) filling internal pores of the polymer membrane. The polymer composite membrane can have a high proton conductivity and/or a reduced methanol permeability and can be used in fuel cells, electrochemical sensor, and the like. The present invention also provides a method of making a polymer composite membrane, by providing a perfluorosulfonic polymer member, subjecting the perfluorosulfonic polymer member to a furan-based monomer, and polymerizing the furan-based monomer to obtain a polymer composite membrane having a high proton conductivity and/or a reduced methanol permeability.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 17, 2006
    Inventors: Jin Liu, Huanting Wang, Shao-An Cheng, Kwong-Yu Chan
  • Publication number: 20040226829
    Abstract: The present invention can provide an electrode member having a substrate member and a coating member. The substrate member can be made of a material selected from the group consisting of titanium, gold coated titanium and other inert conducting materials. The coating member can have a tin dioxide modified by antimony. The electrode member of the present invention can be used for direct generation of ozone in water or through water into a gaseous state.
    Type: Application
    Filed: February 17, 2004
    Publication date: November 18, 2004
    Inventors: Shao-An Cheng, Kwong-Yu Chan, Wai Kit Fung
  • Publication number: 20040121227
    Abstract: An electrochemical device such as a battery and a fuel cell having two electrolytes between the anode and the cathode. The electrochemical device is preferably arranged with an alkaline electrolyte in contact with the anode and an acidic electrolyte in contact with the cathode. The electrolytes are separated by a bipolar membrane that preferably also provides ionic conductivity between the two electrolytes and also generates a supply of protons and hydroxide anions. The electrochemical device achieves fifty percent higher operating voltage and power compared to fuel cells with a single electrolyte.
    Type: Application
    Filed: May 21, 2003
    Publication date: June 24, 2004
    Inventors: Shao-An Cheng, Kwong-Yu Chan