Patents by Inventor Gregory Paul Nitzel

Gregory Paul Nitzel 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: 10624963
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 21, 2020
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Patent number: 10576142
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. The method generally involves the steps of transfecting recombinant virus containing open reading frame 2 coding sequences into cells contained in growth media, causing the virus to express open reading frame 2, and recovering the expressed protein in the supernate. This recovery should take place beginning approximately 5 days after infection of the cells in order to permit sufficient quantities of recombinant protein to be expressed and secreted from the cell into the growth media. Such methods avoid costly and time consuming extraction procedures required to separate and recover the recombinant protein from within the cells.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: March 3, 2020
    Inventors: Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Patent number: 10568955
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: February 25, 2020
    Inventors: Michael B Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20180236057
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20180169214
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. The method generally involves the steps of transfecting recombinant virus containing open reading frame 2 coding sequences into cells contained in growth media, causing the virus to express open reading frame 2, and recovering the expressed protein in the supernate. This recovery should take place beginning approximately 5 days after infection of the cells in order to permit sufficient quantities of recombinant protein to be expressed and secreted from the cell into the growth media. Such methods avoid costly and time consuming extraction procedures required to separate and recover the recombinant protein from within the cells.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20180169213
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.
    Type: Application
    Filed: January 31, 2018
    Publication date: June 21, 2018
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Patent number: 9987349
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: June 5, 2018
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Michael B Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Patent number: 9987348
    Abstract: This invention provides a vaccine composition for protecting pigs against PCV2, including a highly virulent porcine circovirus type 2b (PCV2b) divergent strain, the composition including a PCV2b divergent ORF2 polypeptide, wherein the ORF2 polypeptide comprises Leucine (L) at position 89, Threonine (T) at position 90, and Aspargine (N) at position 134, according to the numbering of SEQ ID NO: 1 herein.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: June 5, 2018
    Assignee: Zoetis Services LLC
    Inventors: Gregory Paul Nitzel, David Ewell Slade
  • Patent number: 9925255
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 27, 2018
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Patent number: 9925256
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 27, 2018
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Patent number: 9919041
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. The method generally involves the steps of transfecting recombinant virus containing open reading frame 2 coding sequences into cells contained in growth media, causing the virus to express open reading frame 2, and recovering the expressed protein in the supernate. This recovery should take place beginning approximately 5 days after infection of the cells in order to permit sufficient quantities of recombinant protein to be expressed and secreted from the cell into the growth media. Such methods avoid costly and time consuming extraction procedures required to separate and recover the recombinant protein from within the cells.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: March 20, 2018
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Patent number: 9669087
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: June 6, 2017
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Michael B Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Patent number: 9610345
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 4, 2017
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Michael B Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20170049875
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Application
    Filed: August 26, 2016
    Publication date: February 23, 2017
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20160220658
    Abstract: This invention provides a vaccine composition for protecting pigs against PCV2, including a highly virulent porcine circovirus type 2b (PCV2b) divergent strain, the composition including a PCV2b divergent ORF2 polypeptide, wherein the ORF2 polypeptide comprises Leucine (L) at position 89, Threonine (T) at position 90, and Aspargine (N) at position 134, according to the numbering of SEQ ID NO: 1 herein.
    Type: Application
    Filed: September 24, 2014
    Publication date: August 4, 2016
    Inventors: Gregory Paul Nitzel, David Ewell Stade
  • Publication number: 20160193320
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 7, 2016
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Publication number: 20150297708
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Publication number: 20150297707
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel
  • Publication number: 20150190498
    Abstract: The present invention relates to the use of an immunogenic composition that comprises a porcine circovirus type 2 (PCV2) antigen for treatment of several clinical manifestations (diseases). Preferably, the clinical manifestations are associated with a PCV2 infection. Preferably, they include lymphadenopathy, lymphoid depletion and/or multinucleated/giant histiocytes. Moreover, the clinical symptoms include lymphadenopathy in combination with one or a multiple of the following symptoms in pigs: (1) interstitial pneumonia with interlobular edema, (2) cutaneous pallor or icterus, (3) mottled atrophic livers, (4) gastric ulcers, (5) nephritis and (6) reproductive disorders, e.g. abortion, stillbirths, mummies, etc. Furthermore the clinical symptoms include Pia like lesions, normally known to be associated with Lawsonia intracellularis infections.
    Type: Application
    Filed: March 18, 2015
    Publication date: July 9, 2015
    Inventors: Michael B. Roof, Phillip Wayne Hayes, Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer
  • Patent number: 9011872
    Abstract: An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. The method generally involves the steps of transfecting recombinant virus containing open reading frame 2 coding sequences into cells contained in growth media, causing the virus to express open reading frame 2, and recovering the expressed protein in the supernate. This recovery should take place beginning approximately 5 days after infection of the cells in order to permit sufficient quantities of recombinant protein to be expressed and secreted from the cell into the growth media. Such methods avoid costly and time-consuming extraction procedures required to separate and recover the recombinant protein from within the cells.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 21, 2015
    Assignee: Boehringer Ingelheim Vetmedica, Inc.
    Inventors: Marc Allan Eichmeyer, Gregory Paul Nitzel, Merrill Lynn Schaeffer