Patents Assigned to King Abdulaziz University
  • Patent number: 10973760
    Abstract: Instantly dissolving buccal films comprising certain pH modifiers, film formers, film modifiers, and solubilizing agents are provided. Methods of providing the buccal film to enhance the dissolution and bioavailability of low solubility basic drugs, such as dapoxetine hydrochloride, in a subject are also provided.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: April 13, 2021
    Assignee: King Abdulaziz University
    Inventors: Shaimaa M. Badr-Eldin, Hibah M. Aldawsari, Abdelsattar Omar
  • Patent number: 10975102
    Abstract: Heterocyclic diazenyl pyridinone copper(II)-based complexes are provided as pharmacological antitumor agents e.g. to treat lung cancer.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: April 13, 2021
    Assignee: King Abdulaziz University
    Inventors: Khadijah Mohamed Khalf Al-Zaydi, Ahlam Ibrahim Difullah Al-Sulami, Maram Talal J Basha
  • Publication number: 20210101127
    Abstract: A method of removing an organic pollutant from water by contacting the water with a ball milled and sonicated oil fly ash powder to adsorb the organic pollutant onto the ball milled and sonicated oil fly ash powder. A method of producing a ball milled and sonicated oil fly ash powder involving ball milling oil fly ash to provide ball milled oil fly ash particles with an average particle size of less than 1 ?m and sonicating the ball milled oil fly ash particles in an aqueous medium to form the ball milled and sonicated oil fly ash powder. A method of improving recovery of valuable metals/elements from oil fly ash.
    Type: Application
    Filed: December 1, 2020
    Publication date: April 8, 2021
    Applicant: King Abdulaziz University
    Inventors: Numan SALAH, M. Sh. Abdel-Wahab, Adnan Memic, Ahmed Alshahrie, Mohammad Aslam
  • Patent number: 10970650
    Abstract: An AUC-maximized high-accuracy classification method and system for imbalanced datasets integrates an under-sampling-and-ensemble strategy, a true-outliers-removing strategy and a fake-outliers-concealing strategy, with the hope to effectively and robustly enhance both the AUC and the accuracy metrics in imbalanced classification. Applying under-sampling to construct multiple sub-datasets and assembling classification results of multiple classifiers greatly decline the risk of misclassification and lead to highly accurate and robust results in imbalanced classification task. Moreover, this invention pays attention to detect and identify extremely hidden outliers in a sub-dataset which includes a sub-majority dataset and the entire minority dataset. In this way, more hidden outliers can be located and thus exert less influence on the decision boundary, which contributes to both high AUC and accuracy.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 6, 2021
    Assignee: King Abdulaziz University
    Inventors: Abdullah Abusorrah, Yusuf Al-Turki, Mengchu Zhou, Siya Yao
  • Patent number: 10969119
    Abstract: A hybrid photovoltaic and radiant heating and cooling device is provided, wherein the device comprises a photovoltaic panel; a radiant heating and cooling panel; a first heat-exchanging pipe in direct contact with a back surface of the photovoltaic panel; a second heat-exchanging pipe in direct contact with a back surface of the radiant heating and cooling panel; and a thermal storage tank fluidly connecting the first and the second heat-exchanging pipes, wherein the tank is arranged between the first and second heat-exchanging pipes.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: April 6, 2021
    Assignee: King Abdulaziz University
    Inventor: Mohannad Bayoumi
  • Patent number: 10962529
    Abstract: A method for detecting a SARS-Cov-2 protease in a biological sample is provided. The method includes contacting the biological sample with a fluorescent probe based sensor, wherein the sensor comprises an L-Histidine-D-aspartic acid peptide substrate, a fluorophore, and a quencher molecule; and detecting the SARS-Cov-2 protease when an increase in fluorescence is observed.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: March 30, 2021
    Assignee: King Abdulaziz University
    Inventors: Hani A. Alhadrami, Mohammed Zourob
  • Patent number: 10964899
    Abstract: A hybrid junction solar light sensitive photodiode includes at least one inorganic p-n junction and at least one organic semiconductor p-n junction (pnpn) in series. The photoresponse properties of the photodiode is controlled using an inorganic layer and an organic layer. The photoactive layer is an organic semiconducting material having a mobility higher than 0.5 cm2/Vs. The metal oxide layer is an oxide semiconductor comprising of ternary oxides.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 30, 2021
    Assignee: King Abdulaziz University
    Inventors: Abdullah G. Al-Sehemi, Ahmed A. Al-Ghamdi, Abul Kalam, Aysegul Dere, Fahrettin Yakuphanoglu
  • Patent number: 10965221
    Abstract: A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: March 30, 2021
    Assignee: King Abdulaziz University
    Inventors: Hussain Bassi, Muhyaddin Rawa, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • Patent number: 10959987
    Abstract: Imidazole-based compounds as hepatitis C virus (HCV) inhibitors. The compounds have an imidazole core that is disubstituted via amide links. Also described are a pharmaceutical composition incorporating the imidazole-based compound, a method of preparing these compounds, and a method for using the pharmaceutical composition in the treatment of HCV infection.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 30, 2021
    Assignee: King Abdulaziz University
    Inventors: Moustafa E. El-Araby, Abdelsattar Mansour Omar, Mahmoud Abdelkhalek El-Faky, Sameh Hamdy Abdelmageed Soror, Maan Talaat Khayat, Hani Zakariah Asfour, Faida Hassan Bamane
  • Publication number: 20210077223
    Abstract: The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (“PGA”) on to cut dentin tubules followed by installation of a definitive restorative in a single visit.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Applicant: King Abdulaziz University
    Inventors: Maha M.F. Mounir, Laila Ahmed Salim Bahammam
  • Publication number: 20210068924
    Abstract: The invention is directed to a composition that safely removes a cured dental cement or resin from metal brackets, metal braces, and enamel surfaces of teeth. It contains eugenol, isoeugenol, methyl-eugenol or an isomer thereof. A method for removing orthodontic fixtures adhered with a dental cement or resin to the enamel surfaces of teeth from these surfaces by contacting the dental cement or resin with a composition containing eugenol.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 11, 2021
    Applicant: King Abdulaziz University
    Inventors: Ahmed Samir Ibrahim Bakry, Mona Aly Abbassy, Amal Linjawi, Ali Habib Hassan, Ahmed Fathy Hanafy, Gihan Salah Labib, Amal Mohammed S Abushal
  • Patent number: 10941274
    Abstract: Neutron radiation can be attenuated by a material comprising acrylonitrile butadiene styrene (ABS) filament infused with gadolinium, boron, gold, and/or cadmium. The metal-infused filaments are 3D-printed to form a sleeve or cover for gamma and/or alpha radiation detectors to shield, absorb and allow detection of neutrons that are converted to gamma and or alpha radiation. The materials can also allow discrimination between neutron and gamma and/or alpha radiation in a mixed radiation field. Boron-infused filaments also provide neutron shielding and can be used in the manufacture of water equivalent phantoms.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: March 9, 2021
    Assignee: King Abdulaziz University
    Inventors: Ezzat Elmoujarkach, Fuad AlNadwi, Essam Banoqitah, Abdulsalam Alhawsawi
  • Patent number: 10935474
    Abstract: Provided herein is a membrane filter device comprising a cell top cover (A, Y) and a cell bottom cover (B, Z) covering the device, a flexible tube (35, E, F) whereas at the end of the tube, a nozzle jet (22) is also secured via conical reducer to produce upper Reynold's number and for distributing the feed fluid, within the hex hollow chamber (C, X) for storing and receiving feed fluid, a reducer chamber (C, R1, R2) for storing and receiving permeate filtrated fluid, a connector (32, 53, 56) connecting both feed chambers (A, Y, Z) and reducer chambers (A, Y, Z), a membrane assembly (M/F) comprising a layer of membrane (130) sandwiched by a pair of seal rings (P1, OR, P2) and a layer of support net (MS) for securing said membrane (M/F). Most of the joints are connected using threaded joint and flow pressure, therefore no external clamp, nuts or bolts is needed. The flexible tube and the cylindrical shape ensure uniform flow in chambers.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: March 2, 2021
    Assignee: King Abdulaziz University
    Inventor: Iqbal Ahmed Moujdin
  • Patent number: 10933403
    Abstract: Carbon nanoparticles are decorated with ultrafine hafnium promethium nanowires. Exemplary nanowires of hafnium promethium oxide (e.g., Hf0.7Pm0.3O2) have been fabricated. The carbon nanoparticles decorated with hafnium promethium nanowires may be used in reactions for reducing carbon dioxide to methanol, and have applications as a photocatalyst for energy applications.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: March 2, 2021
    Assignee: King Abdulaziz University
    Inventors: Waleed Elsayed Mahmoud, Ahmed Abdullah Salem Al-Ghamdi, Yusuf Abdulaziz Al-Turki
  • Patent number: 10933400
    Abstract: Three dimensional (3D), porous, Sr(II)/Ir(III) layered double hydroxide materials with a spherical/balls like shape, are composed of nanohexagonal sheets intercalated with 1-(1-hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid have a number of uses including removing undesirable organic compounds and materials from polluted water. This removal can be accomplished without disturbing the pH of the water, and with high absorption capacity (2000 mg of pollutants/1 mg of LDH). The spherical/ball like materials are easily cleaned and are amenable to being reused several times.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: March 2, 2021
    Assignee: King Abdulaziz University
    Inventors: Waleed Elsayed Mahmoud Elsayed, Ahmed Abdullah Salem Al-Ghamdi, Yusuf Abdulaziz Al-Turki
  • Publication number: 20210054269
    Abstract: A fluorescent nanocomposite which includes a thallium doped gadolinium chalcogenide having formula TlxGd1-xY, wherein x is 0.01 to 0.1, and Y is selected from the group consisting of S, Se, or Te, and a benzothiazolium salt bound to a surface of the thallium doped gadolinium chalcogenide. A method of detecting antimony ions in a fluid sample whereby the fluid sample is contacted with the fluorescent nanocomposite to form a mixture, and a fluorescence emission profile of the mixture is measured to determine a presence or absence of antimony ions in the fluid sample, wherein a reduction in intensity of a fluorescence emissions peak associated with the fluorescent nanocomposite indicates the presence of antimony ions in the fluid sample.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 25, 2021
    Applicant: King Abdulaziz University
    Inventors: Waleed Elsayed Mahmoud Elsayed, Ahmed Abdullah Salem Al-Ghamdi, Yusuf Abdulaziz Al-Turki
  • Patent number: 10920487
    Abstract: A self-powered dynamic photovoltaic sunshade system having sunshades constructed of lightweight ETFE panels covered with at least one thin film of photovoltaic cells. The sunshades track the sun by light detectors, and move against the sun from east to west to block direct rays. The ETFE fabric is stretched on a lightweight frame, which rotates vertically around its axis as a pivotal panel for maximum solar protection. Sunshades rotate to face the sun by day, and reset to a starting position at night. Each sunshade is rotated by a stepped electric motor, powered by thin film(s) of solar photovoltaic cells. Sunshades are suspended between an electric motor shaft and a lower hinge. The sunshades are designed to provide sustainable dynamic shading for building facades exposed to different sun angles, are self-powered, and can generate electric power for other building functions, such as lighting and fan ventilation inside a building.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: February 16, 2021
    Assignee: King Abdulaziz University
    Inventor: Khaled I. Nabil Ahmed
  • Patent number: 10923612
    Abstract: A photodiode comprising a photoactive spinel oxide layer is described. This photoactive spinel oxide layer forms a contact with both a light absorption layer of quantum dots, quantum wires, or quantum rods, and an inorganic substrate layer. In some embodiments, the inorganic substrate layer and the photoactive spinel oxide layer form an isotype junction. Methods of characterizing the photodiode are provided and demonstrate commercially relevant electrical and optoelectronic properties, particularly the ability to operate as a photodetector with a high photosensitivity. An economical process for preparing the photodiode is provided as well as applications.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: February 16, 2021
    Assignee: King Abdulaziz University
    Inventors: Wageh Swelm, Fahrettin Yakuphanoglu, Ahmed A. Al-Ghamdi, Yusuf Abdulaziz Al-Turki
  • Publication number: 20210038736
    Abstract: The present technology is directed to composition that may be formulated for parenteral administration, where the position includes a plurality of nanoparticles and optionally a pharmaceutically acceptable carrier. Each nanoparticle of the plurality includes a glatiramoid and one or more of a polyinosine-polycytidylic acid (Poly(LC)), a plasmid DNA (pDNA), a CpG oligodeoxynucleotide (CpG ODN), or a combination of any two or more thereof.
    Type: Application
    Filed: June 28, 2020
    Publication date: February 11, 2021
    Applicants: King AbdulAziz University, University of Kansas
    Inventors: Cory J. BERKLAND, Nabil Abdulhafiz ALHAKAMY
  • Patent number: D911550
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: February 23, 2021
    Assignee: King Abdulaziz University
    Inventors: Adnan Memic, Tuerdimaimaiti Abudula, Kalamegam Gauthaman