Patents by Inventor Gregory Nkepang

Gregory Nkepang 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: 20230201386
    Abstract: A method for making a radiopharmaceutical cold kit without lyophilization, comprising (1) providing a labeling ligand, a reducing agent, and a bulking agent, and at least one of an antioxidant and an exchange ligand, wherein each of said labeling ligand, reducing agent, bulking agent, antioxidant and exchange ligand is provided in a dry form; and (2) combining and mixing the labeling ligand, the reducing agent, the bulking agent, and at least one of the antioxidant and the exchange ligand to produce a dry powder mixture, wherein the wherein the dry powder mixture is produced without the use of a lyophilization step. The radiopharmaceutical cold kit comprising the dry powder mixture may be stored, or combined with a radionuclide such as Technetium-99m (99mTc).
    Type: Application
    Filed: December 14, 2022
    Publication date: June 29, 2023
    Inventors: Hariprasad Gali, Gregory Nkepang, Wendy K. Galbraith
  • Publication number: 20210361784
    Abstract: An imaging agent and a method of its use for imaging a necrosis in a tissue of a subject. The imaging method may be positron emission tomography (PET). In at least one embodiment the imaging agent comprises 2-deoxy-2-[18F]fluoroglucaric acid (18F-FGA), or a pharmaceutically-acceptable salt thereof. The imaging agent may be disposed in a pharmaceutically-acceptable excipient, carrier, diluent, or vehicle. The imaging agent may be contained within a kit. The disclosure includes in at least one embodiment a method of preparing a radiopharmaceutical such as 18F-FGA for use in imaging. The 18F-FGA binds preferentially to necrotic cells versus living cells.
    Type: Application
    Filed: March 18, 2021
    Publication date: November 25, 2021
    Inventors: Vibhudutta AWASTHI, Hailey HOUSON, Gregory NKEPANG
  • Patent number: 10953113
    Abstract: An imaging agent and a method of its use for imaging a necrosis in a tissue of a subject. The imaging method may be positron emission tomography (PET). In at least one embodiment the imaging agent comprises 2-deoxy-2-[18F]fluoroglucaric acid (18F-FGA), or a pharmaceutically-acceptable salt thereof. The imaging agent may be disposed in a pharmaceutically-acceptable excipient, carrier, diluent, or vehicle. The imaging agent may be contained within a kit. The disclosure includes in at least one embodiment a method of preparing a radiopharmaceutical such as 18F-FGA for use in imaging.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 23, 2021
    Assignee: THE BOARD OF REGENTS OF THE UNIVERSITY OF OKLAHOMA
    Inventors: Vibhudutta Awasthi, Hailey Houson, Gregory Nkepang
  • Publication number: 20200078477
    Abstract: An imaging agent and a method of its use for imaging a necrosis in a tissue of a subject. The imaging method may be positron emission tomography (PET). In at least one embodiment the imaging agent comprises 2-deoxy-2-[18F]fluoroglucaric acid (18F-FGA), or a pharmaceutically-acceptable salt thereof. The imaging agent may be disposed in a pharmaceutically-acceptable excipient, carrier, diluent, or vehicle. The imaging agent may be contained within a kit. The disclosure includes in at least one embodiment a method of preparing a radiopharmaceutical such as 18F-FGA for use in imaging.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 12, 2020
    Inventors: Vibhudutta Awasthi, Hailey Houson, Gregory Nkepang
  • Patent number: 9839690
    Abstract: Activatable compositions that include at least one functional moiety and at least one cleavable linker directly or indirectly linked to the at least one functional moiety are disclosed. The at least one functional moiety is inactive when linked to the linker and activated upon cleavage of the linker. Methods of production and use of the activatable composition are also disclosed.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 12, 2017
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Youngjae You, Moses Bio, Abu Gafar Hossion, Gregory Nkepang
  • Publication number: 20170014510
    Abstract: Activatable compositions that include at least one functional moiety and at least one cleavable linker directly or indirectly linked to the at least one functional moiety are disclosed. The at least one functional moiety is inactive when linked to the linker and activated upon cleavage of the linker. Methods of production and use of the activatable composition are also disclosed.
    Type: Application
    Filed: June 20, 2016
    Publication date: January 19, 2017
    Inventors: Youngjae You, Moses Bio, Abugafar Hossion, Gregory Nkepang
  • Patent number: 9393306
    Abstract: Activatable compositions that include at least one functional moiety and at least one cleavable linker directly or indirectly linked to the at least one functional moiety are disclosed. The at least one functional moiety is inactive when linked to the linker and activated upon cleavage of the linker. Methods of production and use of the activatable composition are also disclosed.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: July 19, 2016
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Youngjae You, Moses Bio, Abugafar Hossion, Gregory Nkepang