Patents by Inventor Eva Marand

Eva Marand 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).

  • Method for making oriented single-walled carbon nanotube/polymer nano-composite membranes
    Patent number: 7931838
    Abstract: Nano-composite membranes and methods for making them are described. The nano-composite membranes a made from a layer of oriented carbon nanotubes fixed in a polymeric matrix. Methods for efficient, facile, and inexpensive fabrication of the nano-composite membranes using a filtration method are also described. The carbon nanotubes may also be modified with chemical functional groups to promote their orientation in the carbon nanotube layer or to confer to them other properties.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: April 26, 2011
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Eva Marand, Sangil Kim
  • METHOD FOR MAKING ORIENTED SINGLE-WALLED CARBON NANOTUBE/;POLYMER NANO-COMPOSITE MEMBRANES
    Publication number: 20080290020
    Abstract: Nano-composite membranes and methods for making them are described. The nano-composite membranes a made from a layer of oriented carbon nanotubes fixed in a polymeric matrix. Methods for efficient, facile, and inexpensive fabrication of the nano-composite membranes using a filtration method are also described. The carbon nanotubes may also be modified with chemical functional groups to promote their orientation in the carbon nanotube layer or to confer to them other properties.
    Type: Application
    Filed: August 30, 2007
    Publication date: November 27, 2008
    Inventors: Eva MARAND, Sangil KIM
  • ORDERED MESOPORE SILICA MIXED MATRIX MEMBRANES, AND PRODUCTION METHODS FOR MAKING ORDERED MESOPORE SILICA MIXED MATRIC MEMBRANES
    Publication number: 20070022877
    Abstract: Mixed matrix membranes are prepared from mesoporous silica (and certain other silica) and membrane-forming polymers (such as polysulfone), in a void free fashion where either no voids or voids of less than 100 angstroms are present at the interface of the membrane-forming polymer and the silica. Such silica-containing mixed matrix membranes are particularly useful for their selectivity (such as carbon dioxide selectivity) and permeability. Methods for separating carbon dioxide are provided.
    Type: Application
    Filed: July 5, 2006
    Publication date: February 1, 2007
    Inventors: Eva Marand, Sangil Kim
  • Mixed matrix membranes
    Patent number: 7109140
    Abstract: Mixed matrix membranes are prepared from zeolites and polymers, such as polyimides, in a void free fashion where either no voids or voids of less than several Angstroms are present at the interface of the polymer and the zeolite by bonding (hydrogen, ionic, or covalent) functional groups on the zeolite with functional groups on the polymer. The mixed matrix membranes may be cast or formed by ISAM processes, and may be present on a variety of supports including hollow fibers.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: September 19, 2006
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Eva Marand, Todd W. Pechar, Michael Tsapatsis
  • Mixed matrix membranes
    Publication number: 20030220188
    Abstract: Mixed matrix membranes are prepared from zeolites and polymers, such as polyimides, in a void free fashion where either no voids or voids of less than several Angstroms are present at the interface of the polymer and the zeolite by bonding (hydrogen, ionic, or covalent) functional groups on the zeolite with functional groups on the polymer. The mixed matrix membranes may be cast or formed by ISAM processes, and may be present on a variety of supports including hollow fibers.
    Type: Application
    Filed: April 10, 2003
    Publication date: November 27, 2003
    Inventors: Eva Marand, Todd W. Pechar