Patents by Inventor Gerald W. Fischer

Gerald W. Fischer 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: 20180042999
    Abstract: The present invention is directed to compositions and methods for preventing and/or treating diseases and disorders of patients caused by non-Staphylococcal microorganisms. In particular, compositions and methods contain lysostaphin, altered forms of lysostaphin as compared to wild-type, and synergistic combinations of lysostaphin plus additional conventional treatments such as other enzyme, antibiotic and/or antibody treatment. The invention is also directed to detecting and identifying altered forms of lysostaphin that possess increased efficacy against infections as compared to wild-type lysostaphin, and forms that generate a minimal or no immune response in a patient. The invention is also directed to method of manufacturing lysostaphin and altered forms of lysostaphin, and compositions that direct the lysostaphin to the site of the infection such as aerosolized nanoparticles.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 15, 2018
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Richard F. Schuman
  • Publication number: 20170349936
    Abstract: The invention is directed to compositions and methods for collecting, transporting, and storing microorganisms obtained from samples of biological, clinical, forensic, and environmental origin. Compositions preserve the viability of the collected organisms and permit the long-term storage of samples. Compositions are compatible with subsequent manipulation of the sample, including propagation and culture of the collected microorganisms, or isolation, purification, detection, and characterization of proteins, nucleic acids, and all macromolecules. When the compositions containing microorganisms and any polynucleotides therein are further processed, such as by nucleic acid testing, there is an increased ability to detect, isolate, purify and/or characterize select microbes and their components, such as nucleic acids, when compared to conventional microbial transport media that contain interfering substance(s).
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Luke T. Daum, Gerald W. Fischer
  • Patent number: 9821047
    Abstract: The invention is directed to compositions and methods for generating or enhancing the immune system of a patient against infection by a pathogen, and in particular MTB. Compositions of the invention contain one or more non-naturally occurring antigens that generate an effective cellular or humoral immune response to MTB and/or antibodies that are specifically reactive to mycolic acid or to the surface of MTB. The greater activity of the immune system generated by a vaccine of the invention involve an conjugation of peptides to increase in the generation of memory T cells that provide for a greater and/or longer lived or extended response to an MTB infection. Preferably a response involves an increased generation of antibodies that enhance immunity against MTB infection and promote an enhanced phagocytic response.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 21, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum, Clara Jebet Sei
  • Patent number: 9814766
    Abstract: The present invention is directed to compositions and methods for preventing and/or treating diseases and disorders of patients caused by non-Staphylococcal microorganisms. In particular, compositions and methods contain lysostaphin, altered forms of lysostaphin as compared to wild-type, and synergistic combinations of lysostaphin plus additional conventional treatments such as other enzyme, antibiotic and/or antibody treatment. The invention is also directed to detecting and identifying altered forms of lysostaphin that possess increased efficacy against infections as compared to wild-type lysostaphin, and forms that generate a minimal or no immune response in a patient. The invention is also directed to method of manufacturing lysostaphin and altered forms of lysostaphin, and compositions that direct the lysostaphin to the site of the infection such as aerosolized nanoparticles.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 14, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Richard F. Schuman
  • Patent number: 9777045
    Abstract: Disclosed are immunogenic compositions and methods for their use in the formulation and administration of therapeutic and prophylactic pharmaceutical agents. In particular, the invention provides immunogenic compositions and methods for preventing, treating, and/or ameliorating the symptoms of one or more microbial infections, including, for example, influenza.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 3, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Publication number: 20170253935
    Abstract: The invention is directed to tools, compositions and methods for collecting, storing, transporting, isolating and detecting macromolecules such as nucleic acid sequences obtained from specimens. The compositions are one-step formulations for killing or inactivating pathogens, inactivating enzymes, and releasing nucleic acids from the specimens that are prepared for further processing and/or analysis. In particular, the invention provides a single, one-step, sample collection and transport formulation that facilitates the concentration, extraction, isolation and analysis of nucleic acids, genes and genomes.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 7, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Publication number: 20170182149
    Abstract: The invention relates to composite antigens comprising a peptide with contiguous amino acid sequence derived from a plurality of antigenic epitopes of one or more pathogens that induces an immune response in a mammal that is protective against infection by the one or more pathogens. In addition, the invention relates to vaccines comprising composite antigens and to method for treating and preventing an infection.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 29, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Publication number: 20170183725
    Abstract: Disclosed is an enhanced method for rapid and cost-effective analysis of sequences of a microorganism by semi-conductor sequencing, preferably ion-torrent sequencing. This method provides for full length analysis and of multiple areas (e.g. genes) of multiple genomes. These methods identify genetic mutations of a particular gene that are responsible for conferring resistance or sensitivity to an antibiotic or other chemical compound. Multiple different species, strains and/or serotypes of a particular organism are rapidly and efficiently screened and mutations identified along with the complete genome of an organism. By selecting primers pairs of similar size and GC content that produce amplicons with sequences spanning the entire genome, a single PCR reaction analyzed by ion torrent methodology can determine the sequence of a complete genome. Methods are useful to sequences the genomes of viral agents, such as influenza virus, and bacterial agents, such as tuberculosis bacteria.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 29, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Luke T. Daum, Gerald W. Fischer
  • Patent number: 9683256
    Abstract: Disclosed are compositions for isolating populations of nucleic acids from biological, forensic, and environmental samples. Also disclosed are methods for using these compositions as one-step formulations for killing pathogens, inactivating nucleases, and releasing polynucleotides from other cellular components within the sample, and stabilizing the nucleic acids prior to further processing or assay. The disclosed compositions safely facilitate rapid sample collection, and provide extended storage and transport of the samples at ambient or elevated temperature without contamination of the sample or degradation of the nucleic acids contained therein. This process particularly facilitates the collection of specimens from remote locations, and under conditions previously considered hostile for preserving the integrity of nucleic acids released from lysed biological samples without the need of refrigeration or freezing prior to molecular analysis.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: June 20, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9598462
    Abstract: The invention relates to composite antigens comprising a peptide with contiguous amino acid sequence derived from a plurality of antigenic epitopes of one or more pathogens that induces an immune response in a mammal that is protective against infection by the one or more pathogens. In addition, the invention relates to vaccines comprising composite antigens and to method for treating and preventing an infection.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 21, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9598737
    Abstract: Disclosed is an enhanced method for rapid and cost-effective analysis of sequences of a microorganism by semi-conductor sequencing, preferably ion-torrent sequencing. This method provides for full length analysis and of multiple areas (e.g. genes) of multiple genomes. These methods identify genetic mutations of a particular gene that are responsible for conferring resistance or sensitivity to an antibiotic or other chemical compound. Multiple different species, strains and/or serotypes of a particular organism are rapidly and efficiently screened and mutations identified along with the complete genome of an organism. By selecting primers pairs of similar size and GC content that produce amplicons with sequences spanning the entire genome, a single PCR reaction analyzed by ion torrent methodology can determine the sequence of a complete genome. Methods are useful to sequences the genomes of viral agents, such as influenza virus, and bacterial agents, such as tuberculosis bacteria.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 21, 2017
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Luke T. Daum, Gerald W. Fischer
  • Publication number: 20170073738
    Abstract: The invention is directed to compositions and methods for rapidly detecting, amplifying, and quantitating one or more pathogen-specific nucleic acids in a biological sample, and in particular, samples obtained from patients with sepsis. The invention also provides diagnostic kits containing specific amplification primers, and labeled detection probes that specifically bind to the amplification products obtained therefrom. The invention is also directed to detecting the quantity or ratio of genomic sequences and mRNA sequences of an individual suspected of being infected with an infectious agent over time to assess the progress of the infection over time. Also disclosed are compositions and methods for the isolation and characterization of nucleic acids that are specific to one or more pathogens, such as, for example, Influenza virus, Mycobacterium tuberculosis, Plasmodium, and/or HIV from a wide variety of samples including those of biological, environmental, clinical and/or veterinary origin.
    Type: Application
    Filed: November 25, 2016
    Publication date: March 16, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Jeffrey D. Fischer, Luke T. Daum, Gerald W. Fischer
  • Publication number: 20170044595
    Abstract: The invention is directed to compositions and methods for isolating, detecting, amplifying, and quantitating pathogen-specific nucleic acids in a biological sample, and in particular PCR ready compositions that contain enzyme and are stable or long periods of time. The invention also provides diagnostic kits containing specific amplification primers, and labeled detection probes that specifically bind to the amplification products obtained therefrom. Also disclosed are compositions and methods for the isolation and characterization of nucleic acids that are specific to one or more pathogens, including for example Influenza virus and Mycobacterium tuberculosis, from a wide variety of samples including those of biological, environmental, clinical and/or veterinary origin.
    Type: Application
    Filed: October 26, 2016
    Publication date: February 16, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Publication number: 20170008954
    Abstract: The invention is directed to compositions and methods for stimulating, enhancing or modulating the immune system of a patient before or after infection by a pathogen, and in particular MTB. Compositions of the invention contain non-naturally occurring antigens that generate an effective cellular and/or humoral immune response to MTB and/or antibodies that are specifically reactive to MTB antigens. The greater activity of the immune system generated by a vaccine of the invention increases generation of memory T cells that provide for a greater and/or extended response to an MTB infection. Responses involve an increased generation of antibodies that enhance immunity against MTB infection and promote an enhanced phagocytic response. Monoclonal antibodies produced by the non-naturally occurring antigens enhance phagocytosis and killing of mycobacteria by phagocytic cells, enhance clearance of MTB from the blood and modulate immunity and cytokine responses.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum, Richard F. Schuman, Clara J. Sei
  • Publication number: 20160368950
    Abstract: Disclosed are immunogenic compositions and methods for their use in the formulation and administration of therapeutic and prophylactic pharmaceutical agents. In particular, the invention provides immunogenic compositions and methods for preventing, treating, and/or ameliorating the symptoms of one or more microbial infections, including, for example, influenza.
    Type: Application
    Filed: July 8, 2016
    Publication date: December 22, 2016
    Applicant: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Publication number: 20160333339
    Abstract: The invention is directed to compositions and methods for rapidly and efficiently extracting nucleic acids and/or targeted nucleic acids sequences from biological samples. The methods of the invention comprise combining the sample with a buffer and magnetic silicon beads and concentrating the beads with a magnet or other electrical field. Liquid may be removed, or not, and an alkaline buffer is added followed by magnetic carboxy beads in a binding buffer so that nucleic acids transfer to the carboxy beads, which can be easily and quickly isolated once again with a magnet. Total nucleic acid extraction is greatly enhanced. Extracted nucleic acids can be analyzed, for example, by PCR wherein the nucleic acids can be identified and characterized. Carboxy beads may also contain a ligand so as to target specific nucleic acid sequences. The invention is also directed to kits comprising the tools and compositions for performing the methods of the invention.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9481912
    Abstract: The invention is directed to compositions and methods for isolating, detecting, amplifying, and quantitating pathogen-specific nucleic acids in a biological sample. The invention also provides diagnostic kits containing specific amplification primers, and labeled detection probes that specifically bind to the amplification products obtained therefrom. Also disclosed are compositions and methods for the isolation and characterization of nucleic acids that are specific to one or more pathogens, including for example Influenza virus and Mycobacterium tuberculosis, from a wide variety of samples including those of biological, environmental, clinical and/or veterinary origin.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: November 1, 2016
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9416416
    Abstract: Disclosed are compositions for collecting, storing, and transporting populations of nucleic acids from biological specimens, and clinical, forensic, or environmental samples. Also disclosed are methods for using these compositions as one-step formulations for killing pathogens, inactivating nucleases, and releasing polynucleotides from other cellular components within the sample, and stabilizing the nucleic acids prior to further processing or assay. In particular embodiments, the invention provides a single, one-step, sample collection/transport/storage formulation containing a known quantity of a non-genomic, nucleic acid carrier molecule that serves as an internal reference control to monitor the fidelity of the collection/transportation medium, and measure the integrity of nucleic acids subsequently isolated and purified from the processed sample.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: August 16, 2016
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9388220
    Abstract: The invention is directed to immunogenic compositions and methods for their use in the formulation and administration of therapeutic and prophylactic pharmaceutical agents. In particular, the invention provides immunogenic compositions and methods for preventing, treating, and/or ameliorating the symptoms of one or more microbial infections, including, for example, influenza.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 12, 2016
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Gerald W. Fischer, Luke T. Daum
  • Patent number: 9365904
    Abstract: Disclosed is an enhanced method for rapid and cost-effective analysis of sequences of a microorganism by semi-conductor sequencing, preferably ion-torrent sequencing. This method provides for full length analysis and of multiple areas (e.g. genes) of multiple genomes. These methods identify genetic mutations of a particular gene that are responsible for conferring resistance or sensitivity to an antibiotic or other chemical compound. Multiple different species, strains and/or serotypes of a particular organism are rapidly and efficiently screened and mutations identified along with the complete genome of an organism. By selecting primers pairs of similar size and GC content that produce amplicons with sequences spanning the entire genome, a single PCR reaction analyzed by ion torrent methodology can determine the sequence of a complete genome. Methods are useful to sequences the genomes of viral agents, such as influenza virus, and bacterial agents, such as tuberculosis bacteria.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 14, 2016
    Assignee: Longhorn Vaccines and Diagnostics, LLC
    Inventors: Luke T. Daum, Gerald W. Fischer