Patents by Inventor Sergei Sheiko

Sergei Sheiko 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: 20210077659
    Abstract: The invention generally relates to polymer networks and methods of making and using same. Specifically, the disclosed polymer networks change mechanical properties upon insertion into a subject such as for example, a human. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: January 30, 2019
    Publication date: March 18, 2021
    Inventors: Sergei Sheiko, Mohammad VATANKHAH-VARNOSFADERANI, Daixuan Zhang, Erfan Dashtimoghadam
  • Publication number: 20200399414
    Abstract: The invention generally relates to linear-bottlebrush-linear copolymer blocks and methods of making and using same. The disclosed copolymer blocks can be useful in, for example, the formation of polymer networks that replicate biological stress-strain behavior. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: September 3, 2018
    Publication date: December 24, 2020
    Applicant: The University of North Carolina at Chapel Hill
    Inventors: Sergei SHEIKO, Mohammad VATANKHAH-VARNOSFADERANI
  • Patent number: 10640649
    Abstract: The invention generally relates to compositions comprising polymer bottle brush and comb networks and methods of making polymer networks. Specifically, the disclosed polymer networks are prepared by polymerizing a siloxane monomer in the presence of a crosslinker. Alternatively, the disclosed polymer networks can be prepared by polymerizing a siloxane monomer in the presence of a radical initiator. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 5, 2020
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Sergei Sheiko, Mohammad Vatankhah Varnoosfaderani, Will Daniel
  • Publication number: 20180282609
    Abstract: Capsules contain titanium chloride within an interior of the capsule, which are configured as hydrochloric acid generators upon exposure to a medium contained within an environment at the subterranean location, such as water molecules. The capsules may be configured to be inert in the ambient atmosphere, and are only activated in the presence of water to generate hydrochloric acid inside the capsules followed by a release of the acid to the surrounding environment. Such capsules can be delivered to a subterranean location for removal of filter cake or scale.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
    Inventors: Sergei Sheiko, Mohammad Vatakhah-Varnosfaderani
  • Publication number: 20180201785
    Abstract: The invention generally relates to compositions comprising polymer bottle brush and comb networks and methods of making polymer networks. Specifically, the disclosed polymer networks are prepared by polymerizing a siloxane monomer in the presence of a crosslinker. Alternatively, the disclosed polymer networks can be prepared by polymerizing a siloxane monomer in the presence of a radical initiator. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: July 22, 2016
    Publication date: July 19, 2018
    Inventors: Sergei Sheiko, Mohammad Vatankhah Varnoosfaderani, Will Daniel
  • Publication number: 20180045843
    Abstract: The present disclosure relates generally to expandable microcapsules and their utilization for acoustic imaging within a geological formation. The present disclosure further relates to expandable microcapsules with a multicomponent core and disclosure to practical utilization of multicomponent cores for controlling the expansion properties (e.g., temperature and pressure of expansion, expansion volume ratio, and shell thickness) of the resulting microbubbles.
    Type: Application
    Filed: February 18, 2016
    Publication date: February 15, 2018
    Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
    Inventors: Sergei Sheiko, Natalia V. Lebedeva, Aleksandr Zhushma