Patents by Inventor Cuiyue C. Lei

Cuiyue C. Lei 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).

  • Polymers having acid and amide moieties, and uses thereof
    Patent number: 9493598
    Abstract: Polymers are described that are polymerized from at least one reactive vinyl monomer having acid functionality or a salt thereof, and at least one reactive vinyl monomer having amide functionality. These polymers have a molecular weight from about 500 Da to about 15,000 Da; and may additionally comprise one or more solvent adducts. These polymers may be included in compositions that find use in oilfield applications, such as for inhibition and/or prevention of gas hydrates and/or corrosion.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 15, 2016
    Assignee: ISP INVESTMENTS LLC
    Inventors: Osama M. Musa, Cuiyue C. Lei
  • POLYMERS HAVING ACID AND AMIDE MOIETIES, AND USES THEREOF
    Publication number: 20130123147
    Abstract: Polymers are described that are polymerized from at least one reactive vinyl monomer having acid functionality or a salt thereof, and at least one reactive vinyl monomer having amide functionality. These polymers have a molecular weight from about 500 Da to about 15,000 Da; and may additionally comprise one or more solvent adducts. These polymers may be included in compositions that find use in oilfield applications, such as for inhibition and/or prevention of gas hydrates and/or corrosion.
    Type: Application
    Filed: April 13, 2011
    Publication date: May 16, 2013
    Applicant: ISP INVESTMENTS INC.
    Inventors: Osama M. Musa, Cuiyue C. Lei