Patents by Inventor Keith J. Limbach

Keith J. Limbach 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: 6017542
    Abstract: Disclosed and claimed are nucleotides for genes encoding the canine herpesvirus (CHV) gB, gC and gD homologues. These genes encode polypeptides of 879, 459 and 345 amino acids, respectively, which are also disclosed and claimed. The genes are useful as DNA probes or, for preparing PCR primers. The polypeptides are useful in antigenic, immunological or vaccine compositions. The nucleotides can be expressed in any suitable vector system, allowing for production of the polypeptides. Additionally, the vector system containing any or any combination of the nucleotides can be employed in an antigenic, immunological or vaccine composition, such as a poxvirus vector system, e.g., a CHV-vaccinia or avipox virus recombinant, as can the products from expression, i.e., the gB, gC and gD glycoproteins. Antibodies elicited by the glycoproteins or from expression of the vector containing the nucleotide(s) are also useful. Methods for making and using the composition are also disclosed and claimed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 25, 2000
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Keith J. Limbach
  • Patent number: 5766599
    Abstract: What is described is a modified vector, such as a recombinant poxvirus, particularly recombinant vaccinia virus, having enhanced safety. The modified recombinant virus has nonessential virus-encoded genetic functions inactivated therein so that virus has attenuated virulence. In one embodiment, the genetic functions are inactivated by deleting an open reading frame encoding a virulence factor. In another embodiment, the genetic functions are inactivated by insertional inactivation of an open reading frame encoding a virulence factor. What is also described is a vaccine containing the modified recombinant virus having nonessential virus-encoded genetic functions inactivated therein so that the vaccine has an increased level of safety compared to known recombinant virus vaccines.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: June 16, 1998
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Marion E. Perkus, Jill Taylor, James Tartaglia, Elizabeth K. Norton, Michel Riviere, Charles de Taisne, Keith J. Limbach, Gerard P. Johnson, Steven E. Pincus, William I. Cox, Jean-Christophe Francis Audonnet, Russell Robert Gettig
  • Patent number: 5762938
    Abstract: What is described is a modified vector, such as a recombinant poxvirus, particularly recombinant vaccinia virus, having enhanced safety. The modified recombinant virus has nonessential virus-encoded genetic functions inactivated therein so that virus has attenuated virulence. In one embodiment, the genetic functions are inactivated by deleting an open reading frame encoding a virulence factor. In another embodiment, the genetic functions are inactivated by insertional inactivation of an open reading frame encoding a virulence factor. What is also described is a vaccine containing the modified recombinant virus having nonessential virus-encoded genetic functions inactivated therein so that the vaccine has an increased level of safety compared to known recombinant virus vaccines.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: June 9, 1998
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Marion E. Perkus, Jill Taylor, James Tartaglia, Elizabeth K. Norton, Michel Riviere, Charles de Taisne, Keith J. Limbach, Gerard P. Johnson, Steven E. Pincus, William I. Cox, Jean-Christophe Francis Audonnet, Russell Robert Gettig
  • Patent number: 5756103
    Abstract: What is described is a modified vector, such as a recombinant poxvirus, particularly recombinant vaccinia virus, having enhanced safety. The modified recombinant virus has nonessential virus-encoded genetic functions inactivated therein so that virus has attenuated virulence. In one embodiment, the genetic functions are inactivated by deleting an open reading frame encoding a virulence factor. In another embodiment, the genetic functions are inactivated by insertional inactivation of an open reading frame encoding a virulence factor. What is also described is a vaccine containing the modified recombinant virus having nonessential virus-encoded genetic functions inactivated therein so that the vaccine has an increased level of safety compared to known recombinant virus vaccines.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: May 26, 1998
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Marion E. Perkus, Jill Taylor, James Tartaglia, Elizabeth K. Norton, Michel Riviere, Charles de Taisne, Keith J. Limbach, Gerard P. Johnson, Steven E. Pincus, William I. Cox, Jean-Christophe Francis Audonnet, Russell Robert Gettig
  • Patent number: 5688920
    Abstract: Disclosed and claimed are nucleotides for genes encoding the canine herpesvirus (CHV) gB, gC and gD homologues. These genes encode polypeptides of 879, 459 and 345 amino acids, respectively, which are also disclosed and claimed. The genes are useful as DNA probes or, for preparing PCR primers. The polypeptides are useful in antigenic, immunological or vaccine compositions. The nucleotides can be expressed in any suitable vector system, allowing for production of the polypeptides. Additionally, the vector system containing any or any combination of the nucleotides can be employed in an antigenic, immunological or vaccine composition, such as a poxvirus vector system, e.g., a CHV-vaccinia or avipox virus recombinant, as can the products from expression, i.e., the gB, gC and gD glycoproteins. Antibodies elicited by the glycoproteins or from expression of the vector containing the nucleotide(s) are also useful. Methods for making and using the composition are also disclosed and claimed.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: November 18, 1997
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Keith J. Limbach
  • Patent number: 5529780
    Abstract: Disclosed and claimed are nucleotides for genes encoding the canine herpesvirus (CHV) gB, gC and gD homologues. These genes encode polypeptides of 879, 459 and 345 amino acids, respectively, which are also disclosed. The nucleotides can be expressed in any suitable vector system, allowing for production of the polypeptides. Additionally, the vector system containing any or any combination of the nucleotides can be employed in an antigenic, immunological or vaccine composition, such as a poxvirus vector system, e.g., a CHV-vaccinia or avipox virus recombinant, as can the products from expression, i.e., the gB, gC and gD glycoproteins. Antibodies elicited by the glycoproteins or from expression of the vector containing the nucleotide are also useful. Methods for making and using the composition are also disclosed and claimed.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: June 25, 1996
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Keith J. Limbach
  • Patent number: 5494807
    Abstract: What is described is a modified vector, such as a recombinant poxvirus, particularly recombinant vaccinia virus, having enhanced safety. The modified recombinant virus has nonessential virus-encoded genetic functions inactivated therein so that virus has attenuated virulence. In one embodiment, the genetic functions are inactivated by deleting an open reading frame encoding a virulence factor. In another embodiment, the genetic functions are inactivated by insertional inactivation of an open reading frame encoding a virulence factor. What is also described is a vaccine containing the modified recombinant virus having nonessential virus-encoded genetic functions inactivated therein so that the vaccine has an increased level of safety compared to known recombinant virus vaccines.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: February 27, 1996
    Assignee: Virogenetics Corporation
    Inventors: Enzo Paoletti, Marion E. Perkus, Jill Taylor, James Tartaglia, Elizabeth K. Norton, Michel Riviere, Charles de Taisne, Keith J. Limbach, Gerard P. Johnson, Steven E. Pincus, William I. Cox, Jean-Christophe F. Audonnet, Russell R. Gettig