Patents by Inventor Pradip K. Maiti

Pradip K. Maiti 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: 10513552
    Abstract: The present invention provides a polyclonal antibody composition prepared from eggs of hens immunized with virulent antigens of Clostridium difficile for use in the treatment and prevention of C. difficile infections in subjects with Inflammatory Bowel Disease including Ulcerative colitis and Crohn's disease. Respective groups of hens are immunized with Toxin A or Toxin B of Clostridium difficile or a Clostridium difficile spore preparation. The polyclonal antibodies are recovered from eggs pooled from the immunized hens and the resulting antibody-egg powder is administered orally in a therapeutically effective amount to individuals infected with or suspected of being infected with C. difficile.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 24, 2019
    Assignee: IMMUNIMED INC.
    Inventor: Pradip K. Maiti
  • Publication number: 20180362618
    Abstract: The present invention provides a polyclonal antibody composition prepared from eggs of hens immunized with virulent antigens of Clostridium difficile for use in the treatment and prevention of C. difficile infections in subjects with Inflammatory Bowel Disease including Ulcerative colitis and Crohn's disease. Respective groups of hens are immunized with Toxin A or Toxin B of Clostridium difficile or a Clostridium difficile spore preparation. The polyclonal antibodies are recovered from eggs pooled from the immunized hens and the resulting antibody-egg powder is administered orally in a therapeutically effective amount to individuals infected with or suspected of being infected with C. difficile.
    Type: Application
    Filed: December 18, 2017
    Publication date: December 20, 2018
    Inventor: Pradip K. Maiti
  • Patent number: 9873732
    Abstract: A polyclonal antibody composition prepared from eggs of immunized hens is used to treat C. difficile infections. Respective groups of hens are immunized with Toxin A or Toxin B of Clostridium difficile or a Clostridium difficile spore preparation. The polyclonal antibodies are recovered from eggs pooled from the immunized hens and the resulting powder is administered in a therapeutically effective amount to individuals infected with or suspected of being infected with C. difficile.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 23, 2018
    Inventor: Pradip K. Maiti
  • Publication number: 20150368320
    Abstract: A polyclonal antibody composition prepared from eggs of immunized hens is used to treat C. difficile infections. Respective groups of hens are immunized with Toxin A or Toxin B of Clostridium difficile or a Clostridium difficile spore preparation. The polyclonal antibodies are recovered from eggs pooled from the immunized hens and the resulting powder is administered in a therapeutically effective amount to individuals infected with or suspected of being infected with C. difficile.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 24, 2015
    Inventor: Pradip K. Maiti
  • Patent number: 7166286
    Abstract: The present invention relates to monoclonal antibody H11 and antigen binding fragments that specifically bind to the antigen recognized by H11, the C-antigen. The C-antigen is found specifically on neoplastic cells and not on normal cells. Also disclosed are polynucleotide and polypeptide derivatives based on H11, including single chain V region molecules and fusion proteins, and various pharmaceutical compositions. When administered to an individual, the H11 antibody is effective in diagnosing, localizing, and/or treating neoplasias. The invention further provides methods for treating a neoplastic disease, particularly melanoma, neuroblastoma, glioma, soft tissue sarcoma, and small cell lung carcinoma. Patients who are in remission as a result of traditional modes of cancer therapy may be treated with a composition of this invention in hopes of reducing the risk of recurrence. Patients may also be treated concurrently with the antibodies and traditional anti-neoplastic agents.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: January 23, 2007
    Assignee: Viventia Biotech Inc.
    Inventors: Michael D. Dan, Pradip K. Maiti, Carol Grad, legal representative, Howard A. Kaplan, deceased
  • Patent number: 7115722
    Abstract: The present invention relates to monoclonal antibody H11 and antigen binding fragments that specifically bind to the antigen recognized by H11, the C-antigen. The C-antigen is found specifically on neoplastic cells and not on normal cells. Also disclosed are polynucleotide and polypeptide derivatives based on H11, including single chain V region molecules and fusion proteins, and various pharmaceutical compositions. When administered to an individual, the H11 antibody is effective in diagnosing, localizing, and/or treating neoplasias. The invention further provides methods for treating a neoplastic disease, particularly melanoma, neuroblastoma, glioma, soft tissue sarcoma, and small cell lung carcinoma. Patients who are in remission as a result of traditional modes of cancer therapy may be treated with a composition of this invention in hopes of reducing the risk of recurrence. Patients may also be treated concurrently with the antibodies and traditional anti-neoplastic agents.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: October 3, 2006
    Assignee: Viventia Biotech, Inc.
    Inventors: Michael D. Dan, Howard A. Kaplan, Pradip K. Maiti
  • Publication number: 20040091484
    Abstract: The present invention relates to monoclonal antibody H11 and antigen binding fragments that specifically bind to the antigen recognized by H11, the C-antigen. The C-antigen is found specifically on neoplastic cells and not on normal cells. Also disclosed are polynucleotide and polypeptide derivatives based on H11, including single chain V region molecules and fusion proteins, and various pharmaceutical compositions. When administered to an individual, the H11 antibody is effective in diagnosing, localizing, and/or treating neoplasias. The invention further provides methods for treating a neoplastic disease, particularly melanoma, neuroblastoma, glioma, soft tissue sarcoma, and small cell lung carcinoma. Patients who are in remission as a result of traditional modes of cancer therapy may be treated with a composition of this invention in hopes of reducing the risk of recurrence. Patients may also be treated concurrently with the antibodies and traditional anti-neoplastic agents.
    Type: Application
    Filed: August 29, 2003
    Publication date: May 13, 2004
    Inventors: Michael D. Dan, Pradip K. Maiti, Howard A. Kaplan, Carol Grad
  • Publication number: 20030021779
    Abstract: The present invention relates to monoclonal antibody H11 and antigen binding fragments that specifically bind to the antigen recognized by H11, the C-antigen. The C-antigen is found specifically on neoplastic cells and not on normal cells. Also disclosed are polynucleotide and polypeptide derivatives based on H11, including single chain V region molecules and fusion proteins, and various pharmaceutical compositions. When administered to an individual, the H11 antibody is effective in diagnosing, localizing, and/or treating neoplasias. The invention further provides methods for treating a neoplastic disease, particularly melanoma, neuroblastoma, glioma, soft tissue sarcoma, and small cell lung carcinoma. Patients who are in remission as a result of traditional modes of cancer therapy may be treated with a composition of this invention in hopes of reducing the risk of recurrence. Patients may also be treated concurrently with the antibodies and traditional anti-neoplastic agents.
    Type: Application
    Filed: February 13, 2001
    Publication date: January 30, 2003
    Inventors: Michael D. Dan, Pradip K. Maiti, Howard A. Kaplan
  • Patent number: 6207153
    Abstract: The present invention relates to monoclonal antibody H11 and antigen binding fragments that specifically bind to the antigen recognized by H11, the C-antigen. The C-antigen is found specifically on neoplastic cells and not on normal cells. Also disclosed are polynucleotide and polypeptide derivatives based on H11, including single chain V region molecules and fusion proteins, and various pharmaceutical compositions. When administered to an individual, the H11 antibody is effective in diagnosing, localizing, and/or treating neoplasias. The invention further provides methods for treating a neoplastic disease, particularly melanoma, neuroblastoma, glioma, soft tissue sarcoma, and small cell lung carcinoma. Patients who are in remission as a result of traditional modes of cancer therapy may be treated with a composition of this invention in hopes of reducing the risk of recurrence. Patients may also be treated concurrently with the antibodies and traditional anti-neoplastic agents.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 27, 2001
    Assignee: Viventia Biotech, Inc.
    Inventors: Michael D. Dan, Pradip K. Maiti, Howard A. Kaplan
  • Patent number: 5358710
    Abstract: A method for suppressing the capacity of a mammal to mount an immune response which would be caused by the administration of one or more biologically active foreign proteins, comprising the administration of an immunosuppressively effective amount of a tolerogen corresponding to said foreign protein or proteins, said administration being performed prior to the administration of said protein or proteins.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: October 25, 1994
    Inventors: Alec Sehon, Pradip K. Maiti, Masaru Takata