Patents by Inventor Alexei P. Sokolov

Alexei P. Sokolov 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).

  • Cross-linked polymeric membranes for carbon dioxide separation
    Patent number: 9873094
    Abstract: A membrane useful in gas separation, the membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1×10?5 mol/cm3 to about 6×10?5 mol/cm3, where, in particular embodiments, the cross-linked polysiloxane structure has the following general structure: wherein R1, R2, R3, R4, R5, and R6 are independently selected from hydrocarbon groups having at least 1 and up to 6 carbon atoms; A1 and A2 are independently selected from cyclic hydrocarbon groups; L1 and L2 are linking groups or covalent bonds; n is an integer of at least 1; r and s are independently selected from integers of at least 1; and p is an integer of at least 10. The invention also includes methods for making and using the above-described membranes for gas separation.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: January 23, 2018
    Assignees: UT-Battelle, LLC, University of Tennessee Research Foundation
    Inventors: Tao Hong, Sabornie Chatterjee, Shannon Mark Mahurin, Brian Keith Long, De-en Jiang, Jimmy Wayne Mays, Alexei P. Sokolov, Tomonori Saito
  • CROSS-LINKED POLYMERIC MEMBRANES FOR CARBON DIOXIDE SEPARATION
    Publication number: 20170043303
    Abstract: A membrane useful in gas separation, the membrane comprising a cross-linked polysiloxane structure having a cross-link density of about 0.1×10?5 mol/cm3 to about 6×10?5 mol/cm3, where, in particular embodiments, the cross-linked polysiloxane structure has the following general structure: wherein R1, R2, R3, R4, R5, and R6 are independently selected from hydrocarbon groups having at least 1 and up to 6 carbon atoms; A1 and A2 are independently selected from cyclic hydrocarbon groups; L1 and L2 are linking groups or covalent bonds; n is an integer of at least 1; r and s are independently selected from integers of at least 1; and p is an integer of at least 10. The invention also includes methods for making and using the above-described membranes for gas separation.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 16, 2017
    Applicants: UT-Battelle, LLC, University of Tennessee Research Foundation
    Inventors: Tao HONG, Sabornie CHATTERJEE, Shannon Mark MAHURIN, Brian Keith LONG, De-en JIANG, Jimmy Wayne MAYS, Alexei P. SOKOLOV, Tomonori SAITO
  • High contrast tip-enhanced Raman spectroscopy
    Patent number: 7656524
    Abstract: The present invention relates generally to the field of spectroscopy, and more particularly to tip-enhanced Raman spectroscopy that provides an enhanced contrast-ratio of a near-field Raman signal to a background signal. The near-field Raman signal is captured from a small volume of material near a metal-coated tip thereby achieving submicron lateral resolution.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: February 2, 2010
    Assignee: The University of Akron
    Inventors: Alexei P. Sokolov, Alexander Kisliuk, Disha Mehtani, Ryan D. Hartschuh, Nam-Heui Lee
  • High Contrast Tip-Enhanced Raman Spectroscopy
    Publication number: 20080266557
    Abstract: The present invention relates generally to the field of spectroscopy, and more particularly to tip-enhanced Raman spectroscopy that provides an enhanced contrast-ratio of a near-field Raman signal to a background signal. The near-field Raman signal is captured from a small volume of material near a metal-coated tip thereby achieving submicron lateral resolution.
    Type: Application
    Filed: February 15, 2006
    Publication date: October 30, 2008
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Alexei P. Sokolov, Alexander Kisliuk, Disha Mehtani, Ryan D. Hartschuh, Nam-Heui Lee