Patents by Inventor Daniel J. O'Sullivan

Daniel J. O'Sullivan 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: 8933193
    Abstract: The present invention provides isolated lantibiotics that inhibit. Gram negative and Gram positive microbes. The antibiotic includes an amino acid sequence, wherein the amino acid sequence of the compound and the amino acid sequence of SEQ ID NO:21 or SEQ ID NO:22 have at least 80% identity. The lantibiotics have the characteristic of inhibiting growth of a Gram negative microbe in conditions that do not damage the outer membrane of the Gram negative microbe. The present invention also provides methods for making and using the lantibiotics.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: January 13, 2015
    Assignee: Regents of the University of Minnesota
    Inventors: Daniel J. O'Sullivan, Ju-Hoon Lee
  • Publication number: 20110305763
    Abstract: The present invention provides isolated lantibiotics that inhibit. Gram negative and Gram positive microbes. The antibiotic includes an amino acid sequence, wherein the amino acid sequence of the compound and the amino acid sequence of SEQ ID NO:21 or SEQ ID NO:22 have at least 80% identity. The lantibiotics have the characteristic of inhibiting growth of a Gram negative microbe in conditions that do not damage the outer membrane of the Gram negative microbe. The present invention also provides methods for making and using the lantibiotics.
    Type: Application
    Filed: May 3, 2011
    Publication date: December 15, 2011
    Applicant: Regents of the University of Minnesota
    Inventors: DANIEL J. O'SULLIVAN, Ju-Hoon Lee
  • Patent number: 7960505
    Abstract: The present invention provides isolated lantibiotics that inhibit Gram negative and Gram positive microbes. The lantibiotic includes an amino acid sequence, wherein the amino acid sequence of the compound and the amino acid sequence of SEQ ID NO:21 or SEQ ID NO:22 have at least 80% identity. The lantibiotics have the characteristic of inhibiting growth of a Gram negative microbe in conditions that do not damage the outer membrane of the Gram negative microbe. The present invention also provides methods for making and using the lantibiotics.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: June 14, 2011
    Assignee: Regents of the University of Minnesota
    Inventors: Daniel J. O'Sullivan, Ju-Hoon Lee
  • Publication number: 20090068121
    Abstract: The present invention provides isolated lantibiotics that inhibit Gram negative and Gram positive microbes. The lantibiotic includes an amino acid sequence, wherein the amino acid sequence of the compound and the amino acid sequence of SEQ ID NO:21 or SEQ ID NO:22 have at least 80% identity. The lantibiotics have the characteristic of inhibiting growth of a Gram negative microbe in conditions that do not damage the outer membrane of the Gram negative microbe. The present invention also provides methods for making and using the lantibiotics.
    Type: Application
    Filed: July 18, 2008
    Publication date: March 12, 2009
    Inventors: Daniel J. O'SULLIVAN, Ju-Hoon Lee
  • Patent number: 7053856
    Abstract: The present invention relates to an omni-directional, orthogonally propagating, one-quarter wavelength folded loop antenna. The antenna may be embodied in a wire, flat metal stock or printed configuration. The antenna comprises a folded loop antenna comprising an upper and lower horizontal element with a first and a second end and each of a length that is approximately forty-five percent of the overall one-quarter wavelength of the folded loop antenna connected by a vertical element. The antenna further comprises a ground plane having a minimum vertical length of three-sixteenths of a required wavelength and a horizontal width of a minimum of one-fifth of a wavelength as measured from the physical center of a first end of an antenna feed element. Further aspects of the folded loop antenna system are enabled with polarization diversity and selectable secondary resonance frequency and 10 dB return loss bandwidth.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: May 30, 2006
    Assignee: Honeywell International, Inc.
    Inventor: Daniel J. O'Sullivan
  • Publication number: 20040191233
    Abstract: The present invention provides isolated Bifidobacterium strains that secrete a siderophore, and methods of using such strains. The present invention also provides a siderophore from bifidobacteria, and methods of obtaining and methods of using such siderophores.
    Type: Application
    Filed: April 12, 2004
    Publication date: September 30, 2004
    Applicant: Regents of the University of Minnesota
    Inventor: Daniel J. O'Sullivan
  • Patent number: 6746672
    Abstract: Isolated Bifidobacterium strains are obtained that secrete a siderophore that inhibits the growth of microbes in the gastrointestinal tract of an animal. Microbes inhibited include Lactococcus lactis, Clostridium difficile, and Clostridium perfringens. The Bifidobacterium or siderophore isolated from the Bifidobacterium can be administered to an animal. The Bifidobacterium is grown under iron limiting conditions when obtaining the siderophore. Microbes are inhibited by the siderophore binding iron.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: June 8, 2004
    Assignee: Regents of the University of Minnesota
    Inventor: Daniel J. O'Sullivan
  • Publication number: 20020058326
    Abstract: The present invention provides isolated Bifidobacterium strains that secrete a siderophore, and methods of using such strains. The present invention also provides a siderophore from bifidobacteria, and methods of obtaining and methods of using such siderophores.
    Type: Application
    Filed: June 19, 2001
    Publication date: May 16, 2002
    Inventor: Daniel J. O'Sullivan
  • Patent number: 5919695
    Abstract: An atypical Bacillus subtilis strain NRRL B-21974 from Pozol, a Mexican beverage, is used in controlling molds and other spoilage flora in various materials, particularly foods including dough, tortillas, moist grains and cheese. The Bacillus subtilis strain can be used in living or non-living form in the materials. The materials can include packaging for foods.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: July 6, 1999
    Assignees: Quest International, B.V., Regents of the University of Minnesota
    Inventors: Ebenezer R. Vedamuthu, Barbara J. Holler, Petronella A. P. Vlegels, Jeffrey K. Kondo, Declan MacFadden, Larry L. McKay, Daniel J. O'Sullivan, Purbita Ray, Carla Gabriela Sanchez-Fernandez
  • Patent number: 4972690
    Abstract: A locking video cassette case for a single video cassette includes a case defining a space to receive a video cassette, a lid hingedly secured to the case, a first locking member secured to a surface of the case, a second locking member secured to a surface of the lid, the first and second locking members incorporating means for locking the lid in a closed position, and means for manipulating the locking means for releasing the lid from the closed position.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: November 27, 1990
    Inventor: Daniel J. O'Sullivan
  • Patent number: 4556184
    Abstract: An extendible ceiling hook comprises an apparatus for suspending a hanging plant at various distances from a ceiling for the purposes of ease of maintenance, appearance and the general well being of the plant. An extension line, wound on an extension spool inside the extendible ceiling hook may be reeled in or out or made to rest at a desired distance from the ceiling by raising or lowering the suspended plant pot in a controlled fashion. The suspended plant can also be easily rotated to any desired angle to fully exploit any available sunlight and further enhance its appearance.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: December 3, 1985
    Inventor: Daniel J. O'Sullivan
  • Patent number: 4511177
    Abstract: A convenient baby chair comprises a slidable leaf cut from the top of a table and a seating structure secured to the underside of the table top directly beneath the slidable leaf. As the slidable leaf is drawn out from the table top the resulting opening in the table top exposes the seating structure. The seating structure is constructed so that an infant may be seated facing at or away from the table top area. When not in use the slidable leaf can be pushed back into the table top area and, in doing so, it pulls the seating structure close to the underside of the table top to improve the appearance of the table in this position.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: April 16, 1985
    Inventor: Daniel J. O'Sullivan