Patents by Inventor Sumith Ranil Wickramasinghe

Sumith Ranil Wickramasinghe 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).

  • Catalytic membranes and applications thereof
    Patent number: 10118168
    Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: November 6, 2018
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Sumith Ranil Wickramasinghe, Xianghong Qian, Mathias Ulbricht, Qian Yang
  • CATALYTIC MEMBRANES AND APPLICATIONS THEREOF
    Publication number: 20160256861
    Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Inventors: Sumith Ranil WICKRAMASINGHE, Xianghong QIAN, Mathias ULBRICHT, Qian YANG
  • Catalytic membranes and applications thereof
    Patent number: 9339803
    Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 17, 2016
    Assignees: Board of Trustees of the University of Arkansas, Universitat Duisburg-Essen
    Inventors: Sumith Ranil Wickramasinghe, Xianghong Qian, Mathias Ulbricht, Qian Yang
  • Magnetically responsive membranes
    Patent number: 9132389
    Abstract: The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: September 15, 2015
    Assignee: Colorado State University Research Foundation
    Inventors: Sumith Ranil Wickramasinghe, Xianghong Qian, Heath H. Himstedt, Mathias Ulbricht, Michael J. Semmens
  • Catalytic Membranes And Applications Thereof
    Publication number: 20140371340
    Abstract: In one aspect, catalytic membranes are described herein. In some embodiments, a catalytic membrane comprises a surface functionalized with a polymer, the polymer comprising cellulose solubilization functionalities and acid functionalities for the catalytic hydrolysis of cellulose and/or hemicellulose.
    Type: Application
    Filed: October 31, 2012
    Publication date: December 18, 2014
    Inventors: Sumith Ranil Wickramasinghe, Xianghong Qian, Mathias Ulbricht, Qian Yang
  • MAGNETICALLY RESPONSIVE MEMBRANES
    Publication number: 20140231351
    Abstract: The invention provides permeable magnetically responsive filtration membranes that include a filtration membrane polymer base suitable for fluid filtration; hydrophilic polymers conjugated to the surface of the filtration membrane polymer; and magnetic nanoparticles affixed to the ends of a plurality of the hydrophilic polymers, wherein the hydrophilic polymers are movable with respect to the surface of the filtration membrane polymer surface in the presence of an oscillating magnetic field.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 21, 2014
    Applicants: Colorado State University Research Foundation, The Board of Trustees of the University of Arkansas, Lehrstuhl fur Technische Chemie II, Universitat Duisburg-Essen
    Inventors: Sumith Ranil WICKRAMASINGHE, Xianghong QIAN, Heath H. HIMSTEDT, Mathias ULBRICHT, Michael J. SEMMENS
  • Extra-lumenal crossflow plasmapheresis devices and method of use thereof
    Patent number: 5846427
    Abstract: Improved devices for blood separations are provided based on the use of hollow fiber membrane arrays in extra-lumenal crossflow filtration. Blood is processed extra-lumenally across an ordered array of microporous hollow fibers to separate cells from plasma. By use of extra-lumenal crossflow filtration with suitably oriented fibers, the separation device is more efficient than existing devices which benefits a patient or donor by reducing extracorporeal volume.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: December 8, 1998
    Assignee: HemaSure, Inc.
    Inventors: Stephen B. Kessler, Sumith Ranil Wickramasinghe