Patents by Inventor Dimiter S. Dimitrov

Dimiter S. Dimitrov 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: 20150246967
    Abstract: Antibodies and antibody fragments that bind to insulin-like growth factor (IGF) 1 receptor (IGF-1R) or IGF-2, as well as methods of using the antibodies for inhibiting the IGF-mediated signaling pathway, inhibiting IGF-1R signaling, and treating cancer, are described. A method of detecting the presence of IGF-1R or IGF-2 in a sample using the disclosed antibodies and antibody fragments is also described.
    Type: Application
    Filed: May 13, 2015
    Publication date: September 3, 2015
    Applicant: The United States of America, as represented by the Secretary, Dept. of Health & Human Services
    Inventors: Dimiter S. Dimitrov, Weizao Chen
  • Publication number: 20150218255
    Abstract: The invention relates to a human anti-dengue virus antibody (an anti-DENV antibody) that binds to a DENV envelope protein and is cross-reactive with DENV serotype 1, DENV serotype 2, DENV serotype 3, and DENV serotype 4. The disclosure provides an anti-DENV antibody that cross-reacts with and neutralizes all four DENV serotypes. Also provided is a nucleic acid molecule that encodes such an anti-DENV antibody. Also provided is a method to produce and use such an antibody or nucleic acid molecule encoding such an antibody.
    Type: Application
    Filed: May 14, 2013
    Publication date: August 6, 2015
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu
  • Publication number: 20150202284
    Abstract: The present invention provides a vaccine and method for making same which is effective to elicit a desired antibody against a target antigen comprising a primary immunogen and a secondary immunogen, wherein the primary immunogen is effective to elicit B cell receptors (BCRs) that are on the maturational pathway of the desired antibody and have an intermediate degree of somatic mutational diversity, and the secondary immunogen comprises an epitope of the desired target antibody and is effective to further diversify the BCRs sufficient to form mature BCRs having the identical or substantially identical sequence as the desired antibody.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 23, 2015
    Applicant: The United States of America, as represented by the Secretary, Dept. of Health & Human Services
    Inventor: Dimiter S. Dimitrov
  • Patent number: 9056907
    Abstract: The invention provides antibodies or antibody fragments that bind to insulin-like growth factor (IGF) 1 receptor (IGF-1R) or IGF-2, as well as method of using the antibodies for inhibiting the IGF-mediated signaling pathway, inhibiting IGF-1R signaling, and treating cancer. The invention also provides a method of detecting the presence of IGF-1R or IGF-2 in a sample using the inventive antibodies and antibody fragments.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 16, 2015
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Dimiter S. Dimitrov, Weizao Chen
  • Publication number: 20150110798
    Abstract: Human anti-human folate receptor beta antibodies and antigen-binding fragments thereof are described, as well as methods of using such antibodies and fragments to treat inflammatory disorders or cancers expressing cell surface FR?.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 23, 2015
    Inventors: Philip S. Low, Dimiter S. Dimitrov, Yang Feng, Jiayin Shen
  • Publication number: 20150071854
    Abstract: The present invention relates to monoclonal antibodies that bind or neutralize Hendra or Nipah virus. The invention provides such antibodies, fragments of such antibodies retaining Hendra or Nipah virus-binding ability, fully human antibodies retaining Hendra or Nipah virus-binding ability, and pharmaceutical compositions including such antibodies. The invention further provides for isolated nucleic acids encoding the antibodies of the invention and host cells transformed therewith. Additionally, the invention provides for prophylactic, therapeutic, and diagnostic methods employing the antibodies and nucleic acids of the invention.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 12, 2015
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu, Christopher C. Broder
  • Publication number: 20150050278
    Abstract: Fc domains and CH3 domains are disclosed that bind the neonatal Fc (FcRn) receptor and are at least 99% monomeric. Monomeric Fc domain molecules and CH3 domain molecules are disclosed herein that include a monomeric Fc domain or a monomeric CH3 domain and an effector molecule. In some embodiments, the monomeric Fc or monomeric CH3 domain include amino acid substitutions and/or CDR insertions in the beta strands such that they specifically bind an antigen. Methods for using these monomeric Fc domains, monomeric CH3 domains, monomeric Fc domain molecules and CH3 domain molecules are also provided.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 19, 2015
    Inventors: Dimiter S. Dimitrov, Tianlei Ying
  • Patent number: 8911728
    Abstract: The invention provides engineered antibody domains (eAds), a polypeptide comprising a single domain CD4, as well as a fusion protein comprising the same. Nucleic acids encoding eAd and/or polypeptide or the fusion protein thereof, as well as compositions or cells comprising the eAd, polypeptide, fusion protein, or nucleic acid also are provided.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: December 16, 2014
    Assignee: The United States of America, as represented by the Secretary of the Department of Health and Human Services
    Inventors: Dimiter S. Dimitrov, Weizao Chen
  • Patent number: 8871206
    Abstract: Human anti-human folate receptor beta (FR?) antibodies and antigen-binding fragments thereof are described, as well as methods of using such antibodies and fragments to treat inflammatory disorders or cancers expressing cell surface FR?.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 28, 2014
    Assignees: Purdue Research Foundation, The United States of America, as Represented by the Secretary Department of Health and Human Services
    Inventors: Philip S. Low, Dimiter S. Dimitrov, Yang Feng, Jiayin Shen
  • Patent number: 8858938
    Abstract: The present invention relates to monoclonal antibodies that bind or neutralize Hendra or Nipah virus. The invention provides such antibodies, fragments of such antibodies retaining Hendra or Nipah virus-binding ability, fully human antibodies retaining Hendra or Nipah virus-binding ability, and pharmaceutical compositions including such antibodies. The invention further provides for isolated nucleic acids encoding the antibodies of the invention and host cells transformed therewith. Additionally, the invention provides for prophylactic, therapeutic, and diagnostic methods employing the antibodies and nucleic acids of the invention.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: October 14, 2014
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, The Henry M. Jackson Foundation of the Advancement of Military Medicine, Inc.
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu, Christopher C. Broder
  • Publication number: 20140271646
    Abstract: Monoclonal antibodies (mAbs), antigen binding fragments and engineered antibody domains (eAds) that specifically bind IGF-II are disclosed herein. In some embodiments, these mAbs and eAds are included in a bispecific mAb. In some embodiments, the bispecific antibody specifically binds two different epitopes of IGF-II. Methods of using these mAbs, antigen binding fragments, and eAds, bispecific antibodies, and nucleic acids encoding these mAbs, antigen binding fragments, and eAds, bispecific antibodies are also disclosed.
    Type: Application
    Filed: October 16, 2012
    Publication date: September 18, 2014
    Inventors: Dimiter S. Dimitrov, Weizao Chen, Yang Feng
  • Patent number: 8722046
    Abstract: In this application are described fully human monoclonal antibodies which specifically recognize F1 or V antigen of Y. pestis and epitopes recognized by these monoclonal antibodies. Also provided are mixtures of antibodies of the present invention, as well as methods of using individual antibodies or mixtures thereof for the detection, prevention, and/or therapeutical treatment of plague infections in vitro and in vivo.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 13, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Kei Amemiya, Dimiter S. Dimitrov, Xiaodong Xiao
  • Publication number: 20140079715
    Abstract: The present invention relates to monoclonal antibodies that bind or neutralize Hendra or Nipah virus. The invention provides such antibodies, fragments of such antibodies retaining Hendra or Nipah virus-binding ability, fully human antibodies retaining Hendra or Nipah virus-binding ability, and pharmaceutical compositions including such antibodies. The invention further provides for isolated nucleic acids encoding the antibodies of the invention and host cells transformed therewith. Additionally, the invention provides for prophylactic, therapeutic, and diagnostic methods employing the antibodies and nucleic acids of the invention.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Applicants: Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., The Government of the United States of America, as represented by the Secretary, Department of Healt
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu, Christopher C. Broder
  • Publication number: 20140044714
    Abstract: Described herein is the identification of human monoclonal antibodies that bind GPC3 or heparan sulfate (HS) chains on GPC3 with high affinity. The antibodies described herein are capable of inhibiting HCC cell growth and migration. Provided are human monoclonal antibodies specific for GPC3 or HS chains on GPC3, including immunoglobulin molecules, such as IgG antibodies, as well as antibody fragments, such as single-domain VH antibodies or single chain variable fragments (scFv). Further provided are compositions including the antibodies that bind GPC3 or HS chains on GPC3, nucleic acid molecules encoding these antibodies, expression vectors comprising the nucleic acids, and isolated host cells that express the nucleic acids. Methods of treating cancer and/or inhibiting tumor growth or metastasis are also provided. Further provided are methods of detecting cancer in a subject and confirming a diagnosis of cancer in a subject.
    Type: Application
    Filed: April 19, 2012
    Publication date: February 13, 2014
    Inventors: Mitchell Ho, Mingqian Feng, Wei Gao, Heungnam Kim, Dimiter S. Dimitrov
  • Publication number: 20140044720
    Abstract: Disclosed herein are human monoclonal antibodies that specifically bind both IGF-I and IGF-II with picomolar affinity and potently inhibit the IGF-IR signal transduction function. These antibodies are active in both an IgG and a scFv format. Bispecific forms of these antibodies are also disclosed. Nucleic acids encoding these antibodies, vectors including these nucleic acids, and host cells transformed with these vectors are also disclosed herein. Also disclosed are pharmaceutical compositions including these antibodies. Methods are provided for treating a subject with cancer and for inhibiting phosphorylation of the insulin-like growth factor-I receptor. Methods are also provided for diagnosing cancer.
    Type: Application
    Filed: April 11, 2012
    Publication date: February 13, 2014
    Applicant: Department of Health and Human Service
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu, Qi Zhao
  • Publication number: 20140023645
    Abstract: Described herein are engineered antibody constant domain molecules, such as CH2 or CH3 domain molecules, comprising at least one mutation, or comprising at least one complementarity determining region (CDR), or a functional fragment thereof, engrafted in a loop region of the CH2 domain. The CH2 domain molecules described herein are small, stable, soluble, exhibit little to no toxicity and are capable of binding antigen.
    Type: Application
    Filed: October 1, 2013
    Publication date: January 23, 2014
    Applicant: The United States of America, as represented by the Secretary, Dept. of Health & Human Services
    Inventor: Dimiter S. Dimitrov
  • Publication number: 20130315921
    Abstract: Disclosed herein are isolated human monoclonal antibodies that specifically bind human CD22 with a dissociation constant (Kd) of 25 nM or less. Nucleic acids encoding these antibodies, expression vectors including these nucleic acid molecules, and isolated host cells that express the nucleic acid molecules are also disclosed. The antibodies can be used to detect human CD22 in a sample. In some cases, CD22 is soluble CD22. Methods of diagnosing a B-cell malignancy, or confirming a B-cell malignancy diagnosis, are disclosed herein that utilize these antibodies. Methods of treating a subject with a B-cell malignancy are also disclosed.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicant: The Government of the United States of America as represented by the Secretary of the Department of
    Inventors: Dimiter S. Dimitrov, Xiaodong Xiao, Ira H. Pastan
  • Patent number: 8591889
    Abstract: Disclosed herein are isolated human monoclonal antibodies that specifically bind human CD22 with a dissociation constant (Kd) of 25 nM or less. Nucleic acids encoding these antibodies, expression vectors including these nucleic acid molecules, and isolated host cells that express the nucleic acid molecules are also disclosed. The antibodies can be used to detect human CD22 in a sample. In some cases, CD22 is soluble CD22. Methods of diagnosing a B-cell malignancy, or confirming a B-cell malignancy diagnosis, are disclosed herein that utilize these antibodies. Methods of treating a subject with a B-cell malignancy are also disclosed.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: November 26, 2013
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Dimiter S. Dimitrov, Xiaodong Xiao, Ira H. Pastan
  • Patent number: 8580927
    Abstract: Described herein are engineered antibody constant domain molecules, such as CH2 or CH3 domain molecules, comprising at least one mutation, or comprising at least one complementarity determining region (CDR), or a functional fragment thereof, engrafted in a loop region of the CH2 domain. The CH2 domain molecules described herein are small, stable, soluble, exhibit little to no toxicity and are capable of binding antigen.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: November 12, 2013
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventor: Dimiter S. Dimitrov
  • Publication number: 20130189247
    Abstract: The present invention relate to small binding proteins comprising two or more protein domains derived from a CH2 domain or CH2-like domain of an immunoglobulin in which the CH2 domains have been altered to recognize one or more target proteins and, in some embodiments, retain, or have modified, certain secondary effector functions.
    Type: Application
    Filed: February 11, 2011
    Publication date: July 25, 2013
    Applicant: RESEARCH CORPORATION TECHNOLOGIES, INC.
    Inventors: David Bramhill, Kurt R. Gehlsen, Dimiter S. Dimitrov, Rui Gong