Patents by Inventor Weiming Qui

Weiming Qui 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).

  • Detergent compositions
    Patent number: 10844142
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative. The polysaccharide derivative is a polysaccharide polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the polysaccharide derivative are useful as detergent compositions.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: November 24, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Helen S M Lu, Robert Dicosimo, Rong Guan, Weiming Qui
  • DETERGENT COMPOSITIONS
    Publication number: 20190202942
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative. The polysaccharide derivative is a polysaccharide polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the polysaccharide derivative are useful as detergent compositions.
    Type: Application
    Filed: June 12, 2017
    Publication date: July 4, 2019
    Inventors: Helen S M Lu, Robert Dicosimo, Rong Guan, Weiming Qui
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Publication number: 20070167589
    Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 19, 2007
    Inventors: Richard Fernandez, Weiming Qui, Paul Resnick, Robert Wheland