Patents Assigned to Howard University
  • Publication number: 20210038638
    Abstract: Covalently cross-linked copolymers are described herein. More specifically, polysaccharide-polyamine copolymeric matrices or structures and cationic copolymeric matrices are described herein. The polysaccharide-polyamine copolymers, when protonated, can form cationic copolymeric matrices having exceptionally high densities of cationic sites. In one form, the covalently cross-linked copolymers provide a three-dimensional structure, especially when hydrated.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: HOWARD UNIVERSITY
    Inventors: James W MITCHELL, Dazhi YANG
  • Publication number: 20210030691
    Abstract: Non-viral delivery platforms are provided for facilitating transport of molecules across cell membranes. In some forms, DNA nanoshells capable of transporting cargo molecules are formed, and may be formed in order to surround a variety of materials for a variety of purposes.
    Type: Application
    Filed: October 21, 2020
    Publication date: February 4, 2021
    Applicant: Howard University
    Inventor: Preethi Chandran
  • Patent number: 10849927
    Abstract: Covalently cross-linked copolymers are described herein. More specifically, polysaccharide-polyamine copolymeric matrices or structures and cationic copolymeric matrices are described herein. The polysaccharide-polyamine copolymers, when protonated, can form cationic copolymeric matrices having exceptionally high densities of cationic sites. In one form, the covalently cross-linked copolymers provide a three-dimensional structure, especially when hydrated.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: December 1, 2020
    Assignee: HOWARD UNIVERSITY
    Inventors: James W. Mitchell, Dazhi Yang
  • Patent number: 10842754
    Abstract: Non-viral delivery platforms are provided for facilitating transport of molecules across cell membranes. In some forms, DNA nanoshells capable of transporting cargo molecules are formed, and may be formed in order to surround a variety of materials for a variety of purposes.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: November 24, 2020
    Assignee: HOWARD UNIVERSITY
    Inventor: Preethi Chandran
  • Patent number: 10723809
    Abstract: Microcarriers, matrices and scaffolds for growing mammalian cells are provided which include copolymer particles and matrices comprising of polysaccharide-polyamine copolymers. The copolymeric particles and matrices have a pore size of at least 50 microns and permit the mammalian cells to grow both on an exterior surface of the particles and matrices and within an interior of the particles and matrices. Methods for making such microcarriers, matrices and scaffolds, and compositions are also provided. Methods for growing mammalian cells utilizing such microcarriers, matrices and scaffolds and compositions are also provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 28, 2020
    Assignee: HOWARD UNIVERSITY
    Inventors: James W. Mitchell, Dazhi Yang
  • Publication number: 20200190281
    Abstract: A method is provided for synthesizing PLA/apatite composites with improved mechanical strength. In one aspect, a calcium-phosphate/phosphonate hybrid shell is developed to incorporate more reactive hydroxyl groups onto hydroxyapatite (HA) particles. PLA is covalently bonded to HA calcium phosphate hybrid shell, creating a strong interphase between HA and PLA, thus significantly improve the mechanical strength in comparison to that of non-modified HA.
    Type: Application
    Filed: July 24, 2019
    Publication date: June 18, 2020
    Applicant: Howard University
    Inventors: Tongxin Wang, James W. Mitchell
  • Publication number: 20200163884
    Abstract: Provided is a method for preparing a drug loaded nanoparticle comprising: dissolving a macromonomer, a stabilizer and a crosslinker in a solvent to create a mixture; adding an initiator system to the mixture; dissolving a drug or combination of drugs in an organic phase containing the mixture; and recovering the drug loaded nanoparticle, a composition comprising the drug loaded nanoparticle prepared by the above method, and a method for treating cancer comprising administering the above composition to a subject in need thereof.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 28, 2020
    Applicant: HOWARD UNIVERSITY
    Inventor: Emmanuel Oyekanmi Akala
  • Patent number: 10633114
    Abstract: An airport lighting system includes one or more lighting elements, a transient protection apparatus, and one or more electrical control cabinets. The transient protection apparatus is coupled to the one or more lighting elements. One or more electrical control cabinets are coupled to the transient protection apparatus. Each of the control cabinets produces one or more of control and power signals that are effective to operate the one or more lighting elements. The transient protection apparatus is configured to provide protection for one or more of the electrical control cabinets and the one or more lighting elements from electrical surges.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 28, 2020
    Assignee: HOWARD UNIVERSITY
    Inventor: James Momoh
  • Patent number: 10592668
    Abstract: A redundant and diverse secondary control system mirrors a primary control system but has some fundamental structural difference as compared to the primary control system to prevent a spread of a security breach from the primary control system to the secondary control system. The secondary control system may operate on different hardware built on different software written with different programming language as compared to the primary control system while performing the same function as that of the primary system. By hardware coding the algorithm to produce actuation signals, software based viruses and worms cannot interfere with the secondary control system's operation. A monitor device receives actuation signals from both the primary and secondary controls signals to determine whether an error occurred and to provide correct actuation signals to the controlled system.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: March 17, 2020
    Assignee: HOWARD UNIVERSITY
    Inventor: Charles J. Kim
  • Publication number: 20200016192
    Abstract: Methods and compositions are provided for preventing and/or treating infection by disrupting interactions at or near the surface of mannosylated pathogens or other pathogens exhibiting carbohydrate-carbohydrate self-interaction, thus enhancing the immune system's ability to recognize and destroy such pathogens. In some forms, carrier molecules are provided to delivering polymers or other molecules capable of disrupting intra-cellular interaction and/or self-interaction of surface markers on cells.
    Type: Application
    Filed: December 1, 2017
    Publication date: January 16, 2020
    Applicant: Howard University
    Inventor: Preethi Chandran
  • Patent number: 10520374
    Abstract: In some embodiments, phonon based temperature measuring apparatuses include a light source positioned to direct a light toward a prism-resonant cavity interface of an optical resonant cavity inducing an evanescent wave that is guided into the resonant cavity having surface phonon polariton properties; a detector positioned proximate the resonant cavity and configured to detect reflected light from the prism-resonant cavity interface; and a temperature calculator coupled with the detector and configured to determine evanescent light coupling to one or more phonon polariton modes from the resonant cavity, calculate a quality factor as a function of a frequency spectrum of at least one of the one or more phonon polariton modes, and determine a temperature of a dielectric material within the resonant cavity as a function of the quality factor.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 31, 2019
    Assignee: HOWARD UNIVERSITY
    Inventors: James S. Hammonds, Kimani A. Stancil
  • Publication number: 20190391356
    Abstract: In some embodiments, apparatuses and methods are provided herein useful for sensing pressure. In some embodiments, miniature housings are manufactured at ends of optical fibers. In some embodiments, a diamond diaphragm is provided on a hollow housing that receives a fiber optic cable and is sealed to form a Fabry-Perot cavity. In some forms, a plurality of sensors may be manufactured in batch.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Applicant: Howard University
    Inventor: Hyung D. Bae
  • Patent number: 10485735
    Abstract: Described herein are compositions and methods which produce hydrolytically stable resin monomers, bioactive fillers, phosphorus coupling agent and surface coating method, which can be combined to produce new generation dental composites; compositions comprising the same, as well as methods of making and using the same are also described.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: November 26, 2019
    Assignee: HOWARD UNIVERSITY
    Inventors: Tongxin Wang, Lawrence C. Chow
  • Patent number: 10481135
    Abstract: A device and method for the separation, detection, and identification of multiple individual components in a sample where the separation device is gas chromatograph or a microchip separation device. The chromatograph or microchip separation and detection device has a detector including a two dimensional or substantially two dimensional sensor material sensitive to and has a property change (such as a change in resistance) when the surface of the two dimensional or substantially two dimensional sensor material is exposed to a component of a sample in amounts as low as 10?21 grams of component.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 19, 2019
    Assignee: HOWARD UNIVERSITY
    Inventor: Joshua Halpern
  • Publication number: 20190307705
    Abstract: Non-viral delivery platforms are provided for facilitating transport of molecules across cell membranes. In some forms, DNA nanoshells capable of transporting cargo molecules are formed, and may be formed in order to surround a variety of materials for a variety of purposes.
    Type: Application
    Filed: December 1, 2017
    Publication date: October 10, 2019
    Applicant: Howard University
    Inventor: Preethi CHANDRAN
  • Patent number: 10400083
    Abstract: A method is provided for synthesizing PLA/apatite composites with improved mechanical strength. In one aspect, a calcium-phosphate/phosphonate hybrid shell is developed to incorporate more reactive hydroxyl groups onto hydroxyapatite (HA) particles. PLA is covalently bonded to HA calcium phosphate hybrid shell, creating a strong interphase between HA and PLA, thus significantly improve the mechanical strength in comparison to that of non-modified HA.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 3, 2019
    Assignee: Howard University
    Inventors: Tongxin Wang, James W. Mitchell
  • Publication number: 20190262470
    Abstract: Covalently linked linear polyethylenimine (PEI) clusters are provided that change conformation depending upon changes in counterion concentrations. The structures may be used for the storage, delivery, and/or transport of substances.
    Type: Application
    Filed: June 23, 2017
    Publication date: August 29, 2019
    Applicant: Howard University
    Inventor: Preethi Chandran
  • Patent number: 10321885
    Abstract: A myocardial blood flow analysis scan includes incorporating a pharmacological kinetic model with the standard factor analysis model where each time activity curve is assumed to be a linear combination of factor curves. Pharmacological kinetics based factor analysis of dynamic structures (K-FADS-II) model can be applied, whereby estimating factor curves in the myocardium can be physiologically meaningful is provided. Additional optional aspects include performing a discretization to transform continuous-time K-FADS-II model into a discrete-time K-FADS-II model and application of an iterative Improved Voxel-Resolution myocardial blood flow (IV-MBF) algorithm.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 18, 2019
    Assignee: HOWARD UNIVERSITY
    Inventor: John M. M. Anderson
  • Patent number: 10317415
    Abstract: The disclosure relates to the identification of salivary biomarkers for diagnosis and monitoring of type 2 diabetes in a subject. Also provided are methods for noninvasively diagnosing and monitoring type 2 diabetes in a subject. More particularly, the expression of salivary biomarkers, including MUC-1, MUC-2, MUC-4, and MUC-5B, are highly associated with A1C level in African American patients with type 2 diabetes.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 11, 2019
    Assignee: Howard University
    Inventors: Xinbin Gu, Grace Robinson
  • Patent number: 10301258
    Abstract: Methods for treating retroviral infection or inhibiting HIV integrase in target cells or in a patient involve administering to target cells or to a patient in need of treatment an effective amount of at least one having a disulfonamide scaffold which is represented by the formula: wherein, independent of each other, each X independently represents hydrocarbyl, halogeno, amino, substituted amino, or alkoxy, wherein substituted amino is represented by —NR3,R4 wherein R3 and R4, are not both hydrogen and independently represent alkyl or alkenyl, n is an integer of 0, 1, 2, or 3, each Y independently represents hydrocarbyl, halogeno, amino, substituted amino or alkoxy, wherein substituted amino is represented by —NR3,R4 wherein R3 and R4, are not both hydrogen and independently represent alkyl or alkenyl, m is an integer of 0, 1, 2, or 3, and R represents di-valent hydrocarbyl, substituted or unsubstituted.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 28, 2019
    Assignee: HOWARD UNIVERSITY
    Inventor: Xiang Simon Wang