Patents by Inventor Kenneth Marcu

Kenneth Marcu 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: 20230191283
    Abstract: A relatively fast, inexpensive, and non-destructive method for separation and isolation of biologically active nanoparticles is described. Methods include the use of solid phase separation medis such as channeled fibers in a hydrophobic interaction chromatography (HIC) protocol to isolate biologically active nanoparticles from other components of a mixture. Biologically active nanoparticles can include natural nanoparticles (e.g., exosomes, lysosomes, virus particles) as well as synthetic nanoparticles (liposomes, genetically modified virus particles, etc.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: R. KENNETH MARCUS, TERRI F. BRUCE, LEI WANG, SISI HUANG, TYLER Y. SLONECKI, RHONDA REIGERS POWELL
  • Patent number: 11596876
    Abstract: A relatively fast, inexpensive, and non-destructive method for separation and isolation of biologically active nanoparticles is described. Methods include the use of solid phase separation medis such as channeled fibers in a hydrophobic interaction chromatography (HIC) protocol to isolate biologically active nanoparticles from other components of a mixture. Biologically active nanoparticles can include natural nanoparticles (e.g., exosomes, lysosomes, virus particles) as well as synthetic nanoparticles (liposomes, genetically modified virus particles, etc.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 7, 2023
    Assignee: Clemson University Research Foundation
    Inventors: R. Kenneth Marcus, Terri F. Bruce, Lei Wang, Sisi Huang, Tyler Y. Slonecki, Rhonda Reigers Powell
  • Patent number: 11366066
    Abstract: Apparatus include an atmospheric pressure glow discharge (APGD) analyte electrode defining an analyte discharge axis into an APGD volume, and a plurality of APGD counter electrodes having respective electrical discharge ends directed to the APGD volume, wherein the APGD analyte electrode and the APGD counter electrodes are configured to produce an APGD plasma in the APGD volume with a voltage difference between the APGD analyte electrode and one or more of the AGPD counter electrodes. An electrode can be integrated into an ion inlet. Apparatus can be configured to perform auto-ignition and/or provide multi-modal operation through selectively powering electrodes. Electrode holder devices are disclosed. Related methods are disclosed.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: June 21, 2022
    Assignees: Battelle Memorial Institute, Clemson University Research Foundation, GAA Custom Engineering LLC
    Inventors: David W. Koppenaal, Ying Zhu, Edward D. Hoegg, R. Kenneth Marcus, Gordon A. Anderson, Chris Anderson, Tyler Williams
  • Publication number: 20210109026
    Abstract: Apparatus include an atmospheric pressure glow discharge (APGD) analyte electrode defining an analyte discharge axis into an APGD volume, and a plurality of APGD counter electrodes having respective electrical discharge ends directed to the APGD volume, wherein the APGD analyte electrode and the APGD counter electrodes are configured to produce an APGD plasma in the APGD volume with a voltage difference between the APGD analyte electrode and one or more of the AGPD counter electrodes. An electrode can be integrated into an ion inlet. Apparatus can be configured to perform auto-ignition and/or provide multi-modal operation through selectively powering electrodes. Electrode holder devices are disclosed. Related methods are disclosed.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 15, 2021
    Inventors: David W. Koppenaal, Ying Zhu, Edward D. Hoegg, R. Kenneth Marcus, Gordon A. Anderson, Chris Anderson, Tyler Williams
  • Patent number: 10449325
    Abstract: A nasal respiratory mask system configured to be placed on a user's face to provide respiratory gas under positive pressure to the user, the nasal respiratory mask system includes: a nasal mask shell configured to cover a user's nose and mouth, the nasal mask shell includes a first valve opening and a second valve opening, wherein the first valve opening is configured to receive a respiratory tube connected to a positive gas pressure source, wherein the second valve opening is configured to enable the entrance of fresh air when the pressure within the nasal mask shell cavity falls below a threshold pressure; and a securing system configured to secure the nasal mask shell to the user's face, wherein the securing system includes at least one horizontal securing strap, wherein the horizontal securing strap extends from a first side face of the nasal mask shell to a second side face of the nasal mask.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 22, 2019
    Assignee: Rainbow Vista Medical Devices, Inc.
    Inventor: Kenneth Marcus Kurtz
  • Publication number: 20190240594
    Abstract: A relatively fast, inexpensive, and non-destructive method for separation and isolation of biologically active nanoparticles is described. Methods include the use of solid phase separation medis such as channeled fibers in a hydrophobic interaction chromatography (HIC) protocol to isolate biologically active nanoparticles from other components of a mixture. Biologically active nanoparticles can include natural nanoparticles (e.g., exosomes, lysosomes, virus particles) as well as synthetic nanoparticles (liposomes, genetically modified virus particles, etc.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Inventors: R. KENNETH MARCUS, TERRI F. BRUCE, LEI WANG, SISI HUANG, TYLER Y. SLONECKI, RHONDA REIGERS POWELL
  • Publication number: 20190201812
    Abstract: Chromatography devices and methods for forming and using the devices are described. The devices include a polyimide-based support phase and a polymer grafted to a surface of the polyimide-based support phase. A microwave-assisted graft polymerization protocol is described to form the polymer at the surface of the support phase. Devices can be utilized in high-efficiency separation of macromolecules such as proteins.
    Type: Application
    Filed: June 20, 2017
    Publication date: July 4, 2019
    Inventors: R. Kenneth MARCUS, LIUWEI JIANG
  • Patent number: 10281405
    Abstract: Described is an elemental analysis system and methods for use thereof that can be utilized in examination of samples in their native state. The systems utilize a liquid sampling—atmospheric pressure glow discharge (LS-APGD) device for ambient desorption sampling and excitation of a solid sample in combination with optical emission detection. This approach can find application across a broad spectrum of analytical challenges including metals, soils, and volume-limited samples.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 7, 2019
    Assignee: Clemson University Research Foundation
    Inventors: Richard Kenneth Marcus, Htoo Wai Paing, Xinyan Zhang
  • Patent number: 10269525
    Abstract: A liquid sampling, atmospheric pressure, glow discharge (LS-APGD) device as well as systems that incorporate the device and methods for using the device and systems are described. The LS-APGD includes a hollow capillary for delivering an electrolyte solution to a glow discharge space. The device also includes a counter electrode in the form of a second hollow capillary that can deliver the analyte into the glow discharge space. A voltage across the electrolyte solution and the counter electrode creates the microplasma within the glow discharge space that interacts with the analyte to move it to a higher energy state (vaporization, excitation, and/or ionization of the analyte).
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: April 23, 2019
    Assignees: Clemson University Research Foundation, Battelle Memorial Institute on behalf of Pacific Northwest National Laboratory, The Regents of the University of California—Lawrence Berkeley National Laboratory
    Inventors: R. Kenneth Marcus, Charles Derrick Quarles, Jr., Richard E. Russo, David W. Koppenaal, Charles J. Barinaga, Anthony J. Carado
  • Patent number: 9827552
    Abstract: A solid phase for use in separation has been modified using an aqueous phase adsorption of a headgroup-modified lipid to generate analyte specific surfaces for use as a stationary phase in separations such as high performance liquid chromatography (HPLC) or solid phase extraction (SPE). The aliphatic moiety of the lipid adsorbs strongly to a hydrophobic solid surface, with the hydrophilic and active headgroups orienting themselves toward the more polar mobile phase, thus allowing for interactions with the desired solutes. The surface modification approach is generally applicable to a diversity of selective immobilization applications such as protein immobilization clinical diagnostics and preparative scale HPLC as demonstrated on capillary-channeled fibers, though the general methodology could be implemented on any hydrophobic solid support material.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: November 28, 2017
    Assignee: Clemson University
    Inventors: R. Kenneth Marcus, Kenneth A. Christensen
  • Publication number: 20170274169
    Abstract: A nasal respiratory mask system configured to be placed on a user's face to provide respiratory gas under positive pressure to the user, the nasal respiratory mask system includes: a nasal mask shell configured to cover a user's nose and mouth, the nasal mask shell includes a first valve opening and a second valve opening, wherein the first valve opening is configured to receive a respiratory tube connected to a positive gas pressure source, wherein the second valve opening is configured to enable the entrance of fresh air when the pressure within the nasal mask shell cavity falls below a threshold pressure; and a securing system configured to secure the nasal mask shell to the user's face, wherein the securing system includes at least one horizontal securing strap, wherein the horizontal securing strap extends from a first side face of the nasal mask shell to a second side face of the nasal mask.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Inventor: Kenneth Marcus Kurtz
  • Publication number: 20170199130
    Abstract: Described is an elemental analysis system and methods for use thereof that can be utilized in examination of samples in their native state. The systems utilize a liquid sampling—atmospheric pressure glow discharge (LS-APGD) device for ambient desorption sampling and excitation of a solid sample in combination with optical emission detection. This approach can find application across a broad spectrum of analytical challenges including metals, soils, and volume-limited samples.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 13, 2017
    Inventors: Richard Kenneth Marcus, Htoo Wai Paing, Xinyan Zhang
  • Publication number: 20170162358
    Abstract: A liquid sampling, atmospheric pressure, glow discharge (LS-APGD) device as well as systems that incorporate the device and methods for using the device and systems are described. The LS-APGD includes a hollow capillary for delivering an electrolyte solution to a glow discharge space. The device also includes a counter electrode in the form of a second hollow capillary that can deliver the analyte into the glow discharge space. A voltage across the electrolyte solution and the counter electrode creates the microplasma within the glow discharge space that interacts with the analyte to move it to a higher energy state (vaporization, excitation, and/or ionization of the analyte).
    Type: Application
    Filed: November 23, 2016
    Publication date: June 8, 2017
    Inventors: R. Kenneth Marcus, Charles Derrick Quarles, JR., Richard E. Russo, David W. Koppenaal, Charles J. Barinaga, Anthony J. Carado
  • Patent number: 9649379
    Abstract: The present invention provides pharmaceutical compositions for the treatment of hepatocellular carcinoma (HCC) comprising Notch3 inhibitors and a chemotherapeutic agent, methods for the preparation of said compositions and a medical treatment comprising the administration of said pharmaceutical compositions in patients in need thereof.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: May 16, 2017
    Assignee: ALMA MATER STUDIORUM—UNIVERSITA' DI BOLOGNA
    Inventors: Luigi Bolondi, Catia Giovannini, Pásquale Chieco, Kenneth Marcu
  • Patent number: 9536725
    Abstract: A liquid sampling, atmospheric pressure, glow discharge (LS-APGD) device as well as systems that incorporate the device and methods for using the device and systems are described. The LS-APGD includes a hollow capillary for delivering an electrolyte solution to a glow discharge space. The device also includes a counter electrode in the form of a second hollow capillary that can deliver the analyte into the glow discharge space. A voltage across the electrolyte solution and the counter electrode creates the microplasma within the glow discharge space that interacts with the analyte to move it to a higher energy state (vaporization, excitation, and/or ionization of the analyte).
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: January 3, 2017
    Assignees: Clemson University, The Regents of the University of California, Battelle Memorial Institute on behalf of Pacific Northwest National Laboratory
    Inventors: R. Kenneth Marcus, Charles Derrick Quarles, Jr., Richard E. Russo, David W. Koppenaal, Charles J. Barinaga, Anthony J. Carado
  • Publication number: 20160266134
    Abstract: Separation technologies and a support/separation phases for use therein. A surface of a support phase can be modified to include a crosslinked polymer network as stationary phase to perform separation of one or more species from a liquid in highly efficient separations based on chemical interactions, i.e., chromatography. Optionally, the support phase can employ polymer fibers having channels extending axially along their surfaces. The use of the support phase to support the crosslinked stationary phase can be used in one embodiment in the process of performing micro-scale separations.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 15, 2016
    Inventors: R. Kenneth Marcus, Liuwei Jiang
  • Publication number: 20150024511
    Abstract: A solid phase for use in separation has been modified using an aqueous phase adsorption of a headgroup-modified lipid to generate analyte specific surfaces for use as a stationary phase in separations such as high performance liquid chromatography (HPLC) or solid phase extraction (SPE). The aliphatic moiety of the lipid adsorbs strongly to a hydrophobic solid surface, with the hydrophilic and active headgroups orienting themselves toward the more polar mobile phase, thus allowing for interactions with the desired solutes. The surface modification approach is generally applicable to a diversity of selective immobilization applications such as protein immobilization clinical diagnostics and preparative scale HPLC as demonstrated on capillary-channeled fibers, though the general methodology could be implemented on any hydrophobic solid support material.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventors: R. Kenneth Marcus, Kenneth A. Christensen
  • Publication number: 20140218729
    Abstract: A liquid sampling, atmospheric pressure, glow discharge (LS-APGD) device as well as systems that incorporate the device and methods for using the device and systems are described. The LS-APGD includes a hollow capillary for delivering an electrolyte solution to a glow discharge space. The device also includes a counter electrode in the form of a second hollow capillary that can deliver the analyte into the glow discharge space. A voltage across the electrolyte solution and the counter electrode creates the microplasma within the glow discharge space that interacts with the analyte to move it to a higher energy state (vaporization, excitation, and/or ionization of the analyte).
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicants: Clemson University, Pacific Northwest National Laboratory, Lawrence Berkeley National Laboratory
    Inventors: R. Kenneth Marcus, Charles Derrick Quarles, JR., Richard E. Russo, David W. Koppenaal, Charles J. Barinaga, Anthony J. Carado
  • Publication number: 20110112284
    Abstract: A method for modulating NF-?B dependent gene transcription in a cell comprised of modulating IKK? protein activity in the cell. The present invention also provides siRNA compositions and methods thereof for modulating NF-?B dependent gene transcription.
    Type: Application
    Filed: October 13, 2010
    Publication date: May 12, 2011
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Jun LI, Xiang LI, Jianfei YANG, Kenneth MARCU
  • Publication number: 20110003144
    Abstract: A method of preparing a fiber or an article suitable for use in defending against a biological or a chemical contaminant, and the fiber or article resulting from the method thereof, is disclosed. The method includes obtaining a fiber such as a capillary-channeled fiber with a surface having grooves or channels thereon and modifying the surface of the fiber with an active agent so as to provide the fiber with the ability to defend against a biological or a chemical contaminant.
    Type: Application
    Filed: November 13, 2007
    Publication date: January 6, 2011
    Inventors: Philip John Brown, R. Kenneth Marcus, Christine W. Cole, Igor A. Luzinov