Patents by Inventor Kelly Nevin

Kelly Nevin 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: 11976103
    Abstract: Provided herein are IL-2 muteins, IL-2 mutein Fc-fusion molecules, anti-IL-2 antibodies, and complexes comprising an anti IL-2 antibody bound to an IL-2 cytokine that preferentially expand and activate T regulatory cells and are amenable to large scale production. Also provided herein are variant human IgG1 Fc molecules lacking or with highly reduced effector function and high stability despite lacking glycosylation at N297. Also provided herein are linker peptides that are glycosylated when expressed in mammalian cells. Also provided herein are methods of making and using the compositions of the present invention.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: May 7, 2024
    Assignee: Amgen Inc.
    Inventors: Eric Alan Butz, Christy Ann Thomson, Marc Alain Gavin, Ian Nevin Foltz, Dong Xia, Dina N. Alcorn, Randal Robert Ketchem, Ai Ching Lim, Kathy Manchulenko, Laura Sekirov, Kelly Ann Berry, Cyr Clovis Chua De Imus, Neeraj Jagdish Agrawal, Gunasekaran Kannan, Li Li
  • Publication number: 20230040959
    Abstract: The present invention provides, in various embodiments, genetically modified aerobic bacteria, polynucleotides and methods for expressing and/or harvesting electrically conductive protein nanowires (e-PNs). The present invention also provides e-PNs produced using the genetically modified aerobic bacteria, polynucleotides and methods.
    Type: Application
    Filed: November 20, 2020
    Publication date: February 9, 2023
    Inventors: Derek R. Lovley, Toshiyuki Ueki, David Walker, Trevor Woodard, Kelly Nevin Lovley
  • Patent number: 11066449
    Abstract: Improved electrically conductive pili were generated from a natural pilus protein from the microorganism Geobacter sulfurreducens. Substituting a tryptophan for the phenylalanine at position F51 and a tryptophan for the tyrosine at position Y57 of the pilus monomer substantially increased the conductivity of the pili and reduced their diameter to 1.5 nm. Substantial improvements in conductivity were also achieved by substituting an additional tyrosine, histidine, and phenylalanine in the pilus monomer to mimic the monomer of Geobacter metallireducens, but the pili retained the typical Geobacter sulfurreducens wild-type diameter of 3 nm.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: July 20, 2021
    Assignee: University of Massachusetts
    Inventors: Derek R. Lovley, Nikhil Malvankar, Ramesh Adhikari, Yang Tan, Joy Ward, Kelly Nevin
  • Publication number: 20180371029
    Abstract: Improved electrically conductive pili were generated from a natural pilus protein from the microorganism Geobacter sulfurreducens. Substituting a tryptophan for the phenylalanine at position F51 and a tryptophan for the tyrosine at position Y57 of the pilus monomer substantially increased the conductivity of the pili and reduced their diameter to 1.5 nm. Substantial improvements in conductivity were also achieved by substituting an additional tyrosine, histidine, and phenylalanine in the pilus monomer to mimic the monomer of Geobacter metallireducens, but the pili retained the typical Geobacter sulfurreducens wild-type diameter of 3 nm.
    Type: Application
    Filed: July 19, 2016
    Publication date: December 27, 2018
    Applicant: University of Massachusetts
    Inventors: Derek R. LOVLEY, Nikhil MALVANKAR, Ramesh ADHIKARI, Yang TAN, Joy WARD, Kelly NEVIN
  • Publication number: 20160230206
    Abstract: A sensor that measures microbial activity as a surrogate value for the biologically active content of soil, aquatic sediments, or groundwater. An anode, such as a graphite anode that can support a biofilm, is connected by way of a resistor to a cathode. The anode is in contact with either soil, sediment, or immersed in the groundwater of a subsurface monitoring well. The biofilm generates electrons as a consequence of chemical interactions with materials such as acetate dissolved in the soil or sediment waters or groundwater. The cathode is located in soil or water adjacent to the ground, which can be aerobic, so that a reaction that consumes electrons occurs at the cathode. The current flowing through the resistor is a measure of the biological activity at the anode, which correlates with the flux of fuel such as acetate to the anode.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Inventors: Derek R. Lovley, Kelly Nevin
  • Patent number: 9175408
    Abstract: The invention provides systems and methods for generating organic compounds using carbon dioxide as a source of carbon and electrical current as an energy source. In one embodiment, a reaction cell is provided having a cathode electrode and an anode electrode that are connected to a source of electrical power, and which are separated by a permeable membrane. A biological film is provided on the cathode. The biological film comprises a bacterium that can accept electrons and that can convert carbon dioxide to a carbon-bearing compound and water in a cathode half-reaction. At the anode, water is decomposed to free molecular oxygen and solvated protons in an anode half-reaction. The half-reactions are driven by the application of electrical current from an external source. Compounds that have been produced include acetate, butanol, 2-oxobutyrate, propanol, ethanol, and formate.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 3, 2015
    Assignee: UNIVERSITY OF MASSACHUSETTS
    Inventors: Derek R. Lovley, Kelly Nevin
  • Patent number: 8663852
    Abstract: An aerobic microbial fuel cell anode electrode, a fuel cell using the anode, and methods of use. An anode electrode having a conductive exterior surface and having sufficient porosity to allow a fuel-bearing liquid flowing in a cavity within the anode to escape and to supply fuel to a biologically active microbe film grown on the exterior of the anode is situated in the fuel cell. When operated in an aerobic environment, such as water, the anode and a cathode can supply electrical power to a load without the need for a semi-permeable membrane between the anode and the cathode. Several embodiments in which the anode electrode is machined from a graphite block or cylinder are described. Conditions for growing the biologically active film and for operating the fuel cell are described.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: March 4, 2014
    Assignee: University of Massachusetts
    Inventors: Kelly Nevin, Derek Lovley
  • Publication number: 20120288898
    Abstract: The invention provides systems and methods for generating organic compounds using carbon dioxide as a source of carbon and electrical current as an energy source. In one embodiment, a reaction cell is provided having a cathode electrode and an anode electrode that are connected to a source of electrical power, and which are separated by a permeable membrane. A biological film is provided on the cathode. The biological film comprises a bacterium that can accept electrons and that can convert carbon dioxide to a carbon-bearing compound and water in a cathode half-reaction. At the anode, water is decomposed to free molecular oxygen and solvated protons in an anode half-reaction. The half-reactions are driven by the application of electrical current from an external source. Compounds that have been produced include acetate, butanol, 2-oxobutyrate, proponal, ethanol, and formate.
    Type: Application
    Filed: December 22, 2010
    Publication date: November 15, 2012
    Inventors: Derek R. Lovley, Kelly Nevin
  • Publication number: 20120164544
    Abstract: An aerobic microbial fuel cell anode electrode, a fuel cell using the anode, and methods of use. An anode electrode having a conductive exterior surface and having sufficient porosity to allow a fuel-bearing liquid flowing in a cavity within the anode to escape and to supply fuel to a biologically active microbe film grown on the exterior of the anode is situated in the fuel cell. When operated in an aerobic environment, such as water, the anode and a cathode can supply electrical power to a load without the need for a semi-permeable membrane between the anode and the cathode. Several embodiments in which the anode electrode is machined from a graphite block or cylinder are described. Conditions for growing the biologically active film and for operating the fuel cell are described.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Applicant: UNIVERSITY OF MASSACHUSETTS
    Inventors: Kelly Nevin, Derek Lovley