Patents by Inventor Risini Weeratna

Risini Weeratna 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: 20250000976
    Abstract: Herein are provided anti-BCMA single domain antibodies (sdAb) prepared byte immunizing a llama with the ecto-domain of human B-cell maturation antigen (BCMA) that is preferentially expressed by mature B lymphocytes. By constructing a library of the heavy chain repertoire generated, VHH antibodies specific to the immunogen were isolated. The 13 unique example antibodies initially produced comprise CDR1, CDR2, and CDR3 sequences corresponding, respectively to SEQ NOs: 1-3, 4-6, 7-9, 10-12, 13-15, 16-18, 19-21, 22-24, 25-27, 28-30, 31-33, 34-36, 37-39; and related sequences. Also provided are multivalent antibodies comprising any one of the sdAbs, including bispecific T-cell engagers, bispecific killer cell engagers (BiKEs), and trispecific killer cell engagers (TriKEs). Also described are chimeric antigen receptors (CARs) for CAR-T therapy comprising any one of the aforementioned sdAbs.
    Type: Application
    Filed: October 5, 2022
    Publication date: January 2, 2025
    Inventors: Mehdi ARBABI-GHAHROUDI, Risini WEERATNA, Scott MCCOMB, Cunle WU
  • Publication number: 20240156870
    Abstract: Herein are provided anti-EGFR single domain antibodies (sdAb) prepared by immunizing a llama with recombinant human EGFRvIII. VHH antibodies specific to EGFR were isolated. The example antibodies initially produced comprise CDR1, CDR2, and CDR3 sequences corresponding, respectively to SEQ NOs: 1-3, 4-6, 7-9, 10-12, 13-15, 16-18, 19-21, 22-24, 25-27, 28-30, 31-33, 34-36, 37-39, 40-42, 43-45, and 46-48; and related sequences, including humanized variants. Also provided are multivalent antibodies comprising any one of the sdAbs, including bispecific T-cell engagers, bispecific killer cell engagers (BiKEs), and trispecific killer cell engagers (TriKEs). Also described are chimeric antigen receptors (CARs) for CAR-T therapy comprising any one of the aforementioned sdAbs. Uses of these molecules in the treatment of cancer are also described, in particularly EGFR-high cancers. Hinge lengths may be selected to achieve desired activities, such as high activity or high selectivity for target vs. non-target cells.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 16, 2024
    Inventors: Kevin HENRY, Martin ROSSOTTI, Mehdi ARBABI-GHAHROUDI, Scott MCCOMB, Risini WEERATNA, Jamshid TANHA
  • Publication number: 20230265185
    Abstract: Herein are provided anti-CD22 single domain antibodies (sdAb) prepared by immunizing a llama with the extracellular domain of the predominant human CD22 isoform. By constructing a library of the heavy chain repertoire generated, VHH antibodies specific to the immunogen were isolated. The 27 example antibodies initially produced comprise CDR1, CDR2, and CDR3 sequences corresponding, respectively to SEQNOs: 1-3, 4-6, 7-9, 10-12, 13-15, 16- 18, 19-21, 22-24, 25-27, 28-30, 31-33, 34-36, 37-39, 40-42, 43-45, 46-48, 49-51, 52-54, 55- 57, 58-60, 61-63, 64-66, 67-69, 70-72, 73-75, 75-78, and 79-81; and related sequences. Also provided are multivalent antibodies comprising any one of the sdAbs, including bispecific T-cell engagers, bispecific killer cell engagers (BiKEs), and trispecific killer cell engagers (TriKEs). Also described are chimeric antigen receptors (CARs) for CAR-T therapy comprising any one of the aforementioned sdAbs. Uses of these molecules in the treatment of cancer are also described.
    Type: Application
    Filed: July 27, 2021
    Publication date: August 24, 2023
    Inventors: Scott MCCOMB, Risini WEERATNA, Mehdi ARBABI-GHAHROUDI, Tina NGUYEN, Cunle WU
  • Patent number: 10456463
    Abstract: Described are vaccines having one or more antigens cholesterol and CpG. Aspects of the invention relate to the use of the vaccines of the invention for the treatment and/or prevention of human and animal disorders.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: October 29, 2019
    Assignee: Zoetis Belgium S.A
    Inventors: Heather Lynn Davis, Risini Weeratna, Paul J. Dominowski
  • Patent number: 9453059
    Abstract: The invention relates to immunostimulatory oligonucleotides and methods of using immunostimulatory oligonucleotides to induce an antigen-specific immune response. The invention further relates to a vaccine that comprises an immunostimulatory oligonucleotide and an antigen, and comprises a pharmaceutically acceptable carrier. The immunostimulatory oligonucleotides of the invention, in some embodiments, include one or more modified linkage(s).
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 27, 2016
    Assignee: Coley Pharmaceutical Group, Inc.
    Inventors: Heather Davis, Risini Weeratna
  • Publication number: 20150086610
    Abstract: The invention relates to immunostimulatory oligonucleotides and methods of using immunostimulatory oligonucleotides to induce an antigen-specific immune response. The invention further relates to a vaccine that comprises an immunostimulatory oligonucleotide and an antigen, and comprises a pharmaceutically acceptable carrier. The immunostimulatory oligonucleotides of the invention, in some embodiments, include one or more modified linkage(s).
    Type: Application
    Filed: June 28, 2013
    Publication date: March 26, 2015
    Applicant: COLEY PHARMACEUTICAL GROUP, INC.
    Inventors: Heather Davis, Risini Weeratna
  • Patent number: 8580280
    Abstract: This invention relates to adjuvant formulations comprising various combinations of triterpenoids, sterols, immunomodulators, polymers, and Th2 stimulators; methods for making the adjuvant compositions; and the use of the adjuvant formulations in immunogenic and vaccine compositions with different antigens. This invention further relates to the use of the formulations in the treatment of animals.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: November 12, 2013
    Assignee: Zoetis LLC
    Inventors: Paul J. Dominowski, Ramasamy M. Mannan, Richard L. Krebs, James R. Thompson, Tedd A. Childers, Mary K. Olsen, Robert J. Yancey, Jr., Risini Weeratna, Shucheng Zhang, Cedo M. Bagi
  • Patent number: 8552165
    Abstract: The invention relates to immunostimulatory oligonucleotides and methods of using immunostimulatory oligonucleotides to induce an antigen-specific immune response. The invention further relates to a vaccine that comprises an immunostimulatory oligonucleotide and an antigen, and comprises a pharmaceutically acceptable carrier. The immunostimulatory oligonucleotides of the invention, in some embodiments, include one or more modified linkage(s).
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 8, 2013
    Inventors: Heather Davis, Risini Weeratna
  • Publication number: 20130084306
    Abstract: Described are vaccines having one or more antigens cholesterol and CpG. Aspects of the invention relate to the use of the vaccines of the invention for the treatment and/or prevention of human and animal disorders.
    Type: Application
    Filed: May 27, 2011
    Publication date: April 4, 2013
    Applicant: Coley Pharmaceutical Group Inc.
    Inventors: Heather Lynn Davis, Risini Weeratna, Paul J. Dominowski
  • Publication number: 20100143400
    Abstract: The invention relates to immunostimulatory oligonucleotides and methods of using immunostimulatory oligonucleotides to induce an antigen-specific immune response. The invention further relates to a vaccine that comprises an immunostimulatory oligonucleotide and an antigen, and comprises a pharmaceutically acceptable carrier. The immunostimulatory oligonucleotides of the invention, in some embodiments, include one or more modified linkage(s).
    Type: Application
    Filed: December 8, 2009
    Publication date: June 10, 2010
    Inventors: HEATHER DAVIS, RISINI WEERATNA
  • Publication number: 20090324641
    Abstract: This invention relates to adjuvant formulations comprising various combinations of triterpenoids, sterols, immunomodulators, polymers, and Th2 stimulators; methods for making the adjuvant compositions; and the use of the adjuvant formulations in immunogenic and vaccine compositions with different antigens. This invention further relates to the use of the formulations in the treatment of animals.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 31, 2009
    Applicant: PFIZER INC.
    Inventors: Paul J. Dominowski, Ramasamy M. Mannan, Richard L. Krebs, James R. Thompson, Tedd A. Childers, Mary K. Olsen, Robert J. Yancey, Jr., Risini Weeratna, Shucheng Zhang, Cedo M. Bagi