Patents by Inventor Bryan D. CHOI

Bryan D. CHOI 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: 20210309750
    Abstract: Enhancing the delivery of therapeutic, diagnostic and other useful compounds to the brain and other tissues permits more effective use of reagents and use of lower doses. Our method permits enhanced delivery of molecules that are diagnostically, therapeutically, or otherwise useful to specific tissues in the body, including the central nervous system (CNS). Large, hydrophilic molecules, such as antibodies, are typically restricted from entering the CNS by the blood-brain barrier and fail to accumulate to therapeutic levels within the brain. Our method permits enhanced penetrance of the CNS by peripherally administered antibodies. Our method can be applied to enhance the delivery of a variety of therapeutic, diagnostic, and otherwise useful molecules to any tissue, many of which have previously been clinically ineffective due to poor tissue penetrance.
    Type: Application
    Filed: August 7, 2019
    Publication date: October 7, 2021
    Inventors: John H. Sampson, Patrick C. Gedeon, Bryan D. Choi
  • Publication number: 20180362659
    Abstract: We have constructed a polynucleotide encoding a bispecific antibody engaging molecule which has one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The polynucleotide is codon optimized for expression in CHO cells. The subunits of the engaging molecules are organized to achieve greater efficiency. These are promising therapeutic agents.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 20, 2018
    Inventors: Darell D. Bigner, John Sampson, Chien-Tsun Kuan, Mingqing Cai, Bryan D. Choi, Patrick C. Gedeon, Ira H. Pastan
  • Patent number: 10053514
    Abstract: We have constructed a polynucleotide encoding a bispecific antibody engaging molecule which has one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The polynucleotide is codon optimized for expression in CHO cells. The subunits of the engaging molecules are organized to achieve greater efficiency. These are therapeutic agents.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: August 21, 2018
    Assignees: Duke University, The United States of America as Represented by the Secretary of Health and Human Services, National Institutes of Health
    Inventors: Darell D. Bigner, John Sampson, Chien-Tsun Kuan, Mingqing Cai, Bryan D. Choi, Patrick C. Gedeon, Ira H. Pastan
  • Publication number: 20160168263
    Abstract: We have constructed a polynucleotide encoding a bispecific antibody engaging molecule which has one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The polynucleotide is codon optimized for expression in CHO cells. The subunits of the engaging molecules are organized to achieve greater efficiency. These are promising therapeutic agents.
    Type: Application
    Filed: July 9, 2014
    Publication date: June 16, 2016
    Applicants: DUKE UNIVERSITY, THE GOVERNMENT OF THE U.S. AS REPRESENTED BY THE SECRETARY OF HEALTH
    Inventors: Darell D. Bigner, John Sampson, Chien-Tsun Kuan, Mingqing Cai, Bryan D. Choi, Patrick C. Gedeon, Ira H. Pastan
  • Patent number: 9249217
    Abstract: We have constructed bispecific antibody engaging molecules which have one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The engaging molecules are highly cytotoxic and antigen-specific.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: February 2, 2016
    Assignees: Secretary, DHHS, Duke University
    Inventors: Darell D. Bigner, Chien-Tsun Kuan, John H. Sampson, Mingqing Cai, Bryan D. Choi, Ira H. Pastan
  • Publication number: 20120189630
    Abstract: We have constructed bispecific antibody engaging molecules which have one arm that specifically engages a tumor cell which expresses the human EGFRvIII mutant protein on its surface, and a second arm that specifically engages T cell activation ligand CD3. The engaging molecules are highly cytotoxic and antigen-specific. These are promising therapeutic agents.
    Type: Application
    Filed: November 15, 2011
    Publication date: July 26, 2012
    Applicant: DUKE UNIVERSITY
    Inventors: Darell D. BIGNER, Chien-Tsun KUAN, John H. SAMPSON, Mingqing CAI, Bryan D. CHOI