Patents by Inventor Rajendra Krishnan

Rajendra Krishnan 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: 20110020909
    Abstract: The present invention relates generally to the growth of Lawsonia intracellularis in non-mammalian cells and the production of the bacteria on a large scale.
    Type: Application
    Filed: October 14, 2008
    Publication date: January 27, 2011
    Applicant: Pfizer Inc.
    Inventors: Jonathan Evans, Connie Gebhart, Michael John Huether, Rajendra Krishnan, Gregory P. Nitzel, Sharath K. Rai, Catherine J. Streitzel
  • Patent number: 7468185
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, polynucleotide sequences contained therein, polypeptides encoded by such polynucleotide sequences and vaccines comprising such bacteria, polynucleotides, or polypeptides. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: December 23, 2008
    Assignee: Pfizer Inc.
    Inventors: John Morgan Hardham, Kendall Wayne King, Rajendra Krishnan, Kimberly Jean Dreier, David Ross McGavin
  • Publication number: 20080311151
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, polynucleotide sequences contained therein, polypeptides encoded by such polynucleotide sequences and vaccines comprising such bacteria, polynucleotides, or polypeptides. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease. In addition, methods for assessing the efficacy of a vaccine against periodontal diseases in an animal are provided.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 18, 2008
    Applicants: PFIZER, INC., PFIZER PRODUCTS, INC.
    Inventors: John Morgan Hardham, Kendall Wayne King, Rajendra Krishnan, Kimberly Jean Dreier, David Ross McGavin, John David Haworth
  • Patent number: 7378101
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, polynucleotide sequences contained therein, polypeptides encoded by such polynucleotide sequences and vaccines comprising such bacteria, polynucleotides, or polypeptides. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease. In addition, methods for assessing the efficacy of a vaccine against periodontal diseases in an animal are provided.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: May 27, 2008
    Assignees: Pfizer, Inc., Pfizer Products, Inc.
    Inventors: John Morgan Hardham, Kendall Wayne King, Rajendra Krishnan, Kimberly Jean Dreier, David Ross McGavin, John David Haworth
  • Publication number: 20070231341
    Abstract: The present invention provides a method of reducing the major allergen in cat dander, Fel d1, and of reducing allergic response in mammals, including humans, sensitive to cat dander. Specifically to humans sensitive to the Fel d1 allergen that is shed by a cat. The treatment is achieved through administering to the cat itself a composition, which stimulates the cat's immune response to its own dander and Fel d1 polypeptide. The result is a reduction in the amount of Fel d1 shed by the cat, and a subsequent reduction or lowering of the level of allergic responsiveness in sensitized individuals.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 4, 2007
    Inventors: David R. McGavin, John David Haworth, Rajendra Krishnan, John M. Hardham
  • Publication number: 20060257429
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, and vaccines comprising such bacteria. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease.
    Type: Application
    Filed: October 11, 2004
    Publication date: November 16, 2006
    Inventors: Kimberly Dreier, John Hardham, Rajendra Krishnan, David McGavin
  • Publication number: 20050010032
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, polynucleotide sequences contained therein, polypeptides encoded by such polynucleotide sequences and vaccines comprising such bacteria, polynucleotides, or polypeptides. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease. In addition, methods for assessing the efficacy of a vaccine against periodontal diseases in an animal are provided.
    Type: Application
    Filed: May 21, 2004
    Publication date: January 13, 2005
    Inventors: John Hardham, Kendall King, Rajendra Krishnan, Kimberly Dreier, David McGavin, John Haworth
  • Publication number: 20050009770
    Abstract: The present invention provides novel excipient formulations for delivering nucleic acids, particularly naked DNA, across cell membranes in vivo. The present invention also provides penetration enhancers which can be used to enhance delivery and uptake by cells of a wide variety of nucleic acids particularly therapeutic agents or DNA molecule containing a gene encoding a protein which can benefit normal animals, especially in the application of gene therapy and augmenting viability or survival rate of newborn farm animals.
    Type: Application
    Filed: September 26, 2003
    Publication date: January 13, 2005
    Inventors: Lynn Nelson, Paula Gaynor, Rajendra Krishnan
  • Publication number: 20030228328
    Abstract: The present invention relates to novel bacterial isolates identified by their 16S rRNA DNA, that cause periodontal disease in companion animals, polynucleotide sequences contained therein, polypeptides encoded by such polynucleotide sequences and vaccines comprising such bacteria, polynucleotides, or polypeptides. Also provided are methods for treating and preventing periodontal disease and kits for detecting and treating periodontal disease kits for detecting and preventing periodontal disease.
    Type: Application
    Filed: December 18, 2002
    Publication date: December 11, 2003
    Applicant: Pfizer Inc.
    Inventors: John Morgan Hardham, Kendall Wayne King, Rajendra Krishnan, Kimberly J. Dreier, David R. McGavin
  • Publication number: 20030180785
    Abstract: The present invention provides isolated polynucleotide molecules comprising nucleotide sequences encoding GRA1, GRA2, SAG1, MIC1 and MAG1 proteins from Neospora caninum, as well as recombinant vectors, transformed host cells, and recombinantly-expressed proteins. The present invention further provides a polynucleotide molecule comprising the nucleotide sequence of the bidirectional GRA1/MAG1 promoter of N. caninum. The present invention further provides genetic constructs based on the polynucleotide molecules of the present invention that are useful in preparing modified strains of Neospora cells for use in vaccines against neosporosis.
    Type: Application
    Filed: April 21, 2003
    Publication date: September 25, 2003
    Applicants: Pfizer, Inc., Pfizer Products, Inc.
    Inventors: B. Rajendra Krishnan, Rebecca Madura, Christine Yoder, Becky Durtschi, David A. Brake
  • Patent number: 6600027
    Abstract: The present invention provides isolated polynucleotide molecules comprising nucleotide sequences encoding GRA1, GRA2, SAG1, MIC1 and MAG1 proteins from Neospora caninum, as well as recombinant vectors, transformed host cells, and recombinantly-expressed proteins. The present invention further provides a polynucleotide molecule comprising the nucleotide sequence of the bidirectional GRA1IMAGI promoter of N. caninum. The present invention further provides genetic constructs based on the polynucleotide molecules of the present invention that are useful in preparing modified strains of Neospora cells for use in vaccines against neosporosis.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: July 29, 2003
    Assignees: Pfizer, Inc., Pfizer Products, Inc.
    Inventors: B. Rajendra Krishnan, Rebecca Madura, Christine Yoder, Becky Durtschi, David A. Brake
  • Patent number: 6436410
    Abstract: The present invention provides isolated polynucleotide molecules comprising a nucleotide sequence encoding the DHFR-TS protein of Neospora which polynucleotide molecules are useful in preparing modified live vaccines against neosporosis, and as diagnostic reagents. The present invention further provides cloning and expression vectors, transformed host cells, substantially purified DHFR-TS proteins and peptide fragments, genetic constructs useful for targeted gene deletion, and vaccine compositions.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: August 20, 2002
    Assignee: Pfizer, Inc.
    Inventors: B. Rajendra Krishnan, S. Christine Yoder, Becky A. Durtschi