Patents by Inventor Xueqian Kong

Xueqian Kong 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).

  • Monodisperse lubricant including multidentate perfluoropolyether structures
    Patent number: 9765273
    Abstract: In one embodiment, a method for forming a substantially monodisperse lubricant includes: providing a plurality of perfluoropolyether (PFPE) precursors, each PFPE precursor including two end segments and a PFPE backbone disposed therebetween; protecting one of the end segments of each PFPE precursor with one or more protecting agents to form a plurality of mono-protected PFPE precursors, each mono-protected PFPE precursor including a protected end segment and an unprotected end segment; and coupling the unprotected end segment of each of the mono-protected PFPE precursors to the unprotected end segment of another of the mono-protected PFPE precursors via a coupling agent to form multidentate PFPE structures.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: September 19, 2017
    Assignee: Western Digital Technologies, Inc.
    Inventors: Nicholas R. Conley, Xueqian Kong, Bruno Marchon
  • MONODISPERSE LUBRICANT INCLUDING MULTIDENTATE PERFLUOROPOLYETHER STRUCTURES
    Publication number: 20160068778
    Abstract: In one embodiment, a method for forming a substantially monodisperse lubricant includes: providing a plurality of perfluoropolyether (PFPE) precursors, each PFPE precursor including two end segments and a PFPE backbone disposed therebetween; protecting one of the end segments of each PFPE precursor with one or more protecting agents to form a plurality of mono-protected PFPE precursors, each mono-protected PFPE precursor including a protected end segment and an unprotected end segment; and coupling the unprotected end segment of each of the mono-protected PFPE precursors to the unprotected end segment of another of the mono-protected PFPE precursors via a coupling agent to form multidentate PFPE structures.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Nicholas R. Conley, Xueqian Kong, Bruno Marchon
  • Anion exchange membrane
    Patent number: 8436057
    Abstract: An anion exchange membrane and fuel cell incorporating the anion exchange membrane are detailed in which proazaphosphatrane and azaphosphatrane cations are covalently bonded to a sulfonated fluoropolymer support along with anionic counterions. A positive charge is dispersed in the aforementioned cations which are buried in the support to reduce the cation-anion interactions and increase the mobility of hydroxide ions, for example, across the membrane. The anion exchange membrane has the ability to operate at high temperatures and in highly alkaline environments with high conductivity and low resistance.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: May 7, 2013
    Assignee: U.S. Department of Energy
    Inventors: John G. Verkade, Kuldeep Wadhwa, Xueqian Kong, Klaus Schmidt-Rohr