Patents by Inventor George M. Murray

George M. Murray 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).

  • Patent number: 11000844
    Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 11, 2021
    Assignee: TechSource, Inc.
    Inventor: George M. Murray
  • Publication number: 20190232272
    Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Applicant: TechSource, Inc.
    Inventor: George M. Murray
  • Patent number: 10252259
    Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 9, 2019
    Assignee: TechSource, Inc.
    Inventor: George M Murray
  • Publication number: 20160354770
    Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Inventor: George M Murray
  • Patent number: 8591842
    Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: November 26, 2013
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
  • Publication number: 20120288944
    Abstract: A method for detecting a taggant molecular structure in a fluid includes providing a molecularly imprinted polymer sensor device, contacting a molecularly imprinted crosslinked star polymer with the fluid, and correlating a color change in the fluid with the amount of the taggant molecular structure in the fluid. The device has polymer arms attached to a core, and the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator. The displacement molecule is selectively removed from the molecularly imprinted crosslinked polymer upon exposure to the taggant molecular structure in the fluid thereby indicating the presence of the taggant molecular structure in the fluid based on a loss of color along a length of a housing.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 15, 2012
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: George M. Murray, Andrew F. Mason, Edward W. Ott, JR.
  • Patent number: 8241575
    Abstract: A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: August 14, 2012
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Andrew F. Mason, Edward W. Ott, Jr.
  • Publication number: 20120164027
    Abstract: A device for measuring and detecting the organophosphorus compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers possess a securely bound luminescent lanthanide ion, such as Eu3+, in a coordination complex that has been templated for the chemical functionality.
    Type: Application
    Filed: August 26, 2008
    Publication date: June 28, 2012
    Inventors: George M. Murray, O. Manuel Uy, Amanda L. Jenkins
  • Publication number: 20120012530
    Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.
    Type: Application
    Filed: September 27, 2011
    Publication date: January 19, 2012
    Applicant: JOHNS HOPKINS UNIVERSITY
    Inventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
  • Patent number: 8058208
    Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: November 15, 2011
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
  • Publication number: 20110049390
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Application
    Filed: November 4, 2010
    Publication date: March 3, 2011
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 7830515
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: November 9, 2010
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 7799568
    Abstract: A method for identifying a product includes providing a solid body (10) fabricated from at least a molecularly imprinted polymer having molecular sized cavities (12) adapted to selectively receive and bind molecules (50) having a specific taggant molecular structure (51), the molecular sized cavities (12) disposed on a portion of an exterior surface (11) of the body (10), and applying to the surface of the body a composition containing indicator molecules (50) having a taggant moiety (51) at one end and a marking function group (53) tethered to the taggant moiety (51) by a molecular chain the taggant moieties (51) engaging and binding to the molecular sized cavities (12) so as to mark the portion of the surface (11) of the body (10) with the indicator molecules (50) bound thereto, the marking functional groups (53) rendering the marked portion of the surface (11) perceptible with or without detection instrumentation.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: September 21, 2010
    Assignee: The Johns Hopkins University
    Inventors: Harry K. Charles, Jr., George M. Murray
  • Patent number: 7678870
    Abstract: A process is provided herein for preparing molecularly imprinted polymers for detecting a target analyte by Reversible Addition Fragmentation Chain Transfer (RAFT). The process includes providing a complex having the formula L3M wherein L is a ?-diketone ligand containing a chain transfer moiety and L3 can be the same or different ligands, and M is a lanthanide element; reacting the complex with the target analyte to provide an adduct containing the target analyte; co-polymerizing the adduct with a monomer and cross-linking agent to provide a polymer; and removing the target analyte from the polymer to provide the molecularly imprinted polymer.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: March 16, 2010
    Assignee: The Johns Hopkins University
    Inventors: Glen E. Southard, George M. Murray
  • Publication number: 20090197297
    Abstract: A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.
    Type: Application
    Filed: January 27, 2009
    Publication date: August 6, 2009
    Inventors: George M. Murray, Andrew F. Mason, Edward W. Ott, JR.
  • Patent number: 7494769
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: February 24, 2009
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Publication number: 20080264868
    Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.
    Type: Application
    Filed: August 11, 2006
    Publication date: October 30, 2008
    Inventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
  • Publication number: 20080254502
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 16, 2008
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 7416703
    Abstract: A device for measuring and detecting the organophosphonis compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers possess a securely bound luminescent lanthamide ion, such as Eu3+, in a coordination complex that has been templated for the chemical functionality.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: August 26, 2008
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, O. Manuel Uy, Amanda L. Jenkins
  • Publication number: 20080144002
    Abstract: A molecularly imprinted polymer sensor device for detecting a specific inorganic target ion is disclosed. The device includes at least one or more molecularly imprinted polymer beads comprising a macroporous structure having a plurality of complexing cavities therein, wherein the complexing cavities contain cationic ligands spatially oriented to selectively receive and bind a specific inorganic target ion to be detected and having operatively associated therewith a light source for generating excitation energy of the beads.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 19, 2008
    Inventors: George M. Murray, Glen E. Southard