Patents Assigned to King Abdulaziz City Science and Technology
  • Organic-inorganic porous membrane and a method for preparing the same
    Patent number: 9233342
    Abstract: The invention provides an organic-inorganic porous membrane which includes metal organic silica nano-particles impregnated in a polymer. The polymer includes a property of generating porous membrane using a phase inversion technique. The invention also provides a method for preparing the organic-inorganic porous membrane.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: January 12, 2016
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventors: Nezar Hassan Mohamed Khdary, Mamdouh Abdelsalam
  • FULLY AUTOMATED ANALYTICAL METHOD FOR DETERMINATION OF CHLOROETHERS IN WATER AND URINE SAMPLE
    Publication number: 20150377845
    Abstract: A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas chromatography-mass spectrometry (GC-MS) is used to automate the extraction process. In this method, the SPME fiber is exposed to a sample in direct immersion. After exposure, the fiber is desorbed at the injection port of GC-MS.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Applicants: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, King Abdulaziz City for Science and Technology
    Inventors: Basheer CHANBASHA, Mousa Yaser AMAYREH
  • 6-PIPERAZINYL-3,4-DIHYDROQUINAZOLIN-2(1H)-ONES
    Publication number: 20150374695
    Abstract: A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D2 receptor antagonist and 5-HT1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of these compounds.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicants: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, King Abdulaziz City for Science and Technology
    Inventor: Nisar ULLAH
  • Recursive time synchronization protocol method for wireless sensor networks
    Patent number: 9226252
    Abstract: The recursive time synchronization protocol method for wireless sensor networks provides a modified and extended RTSP method to make it work with clustered networks. In case of non-clustered or flat network, each node is assumed to be a clusterhead in order to run the RTSP method correctly. The RTSP method involves the election of a reference node, and compensation for offset and drift. Simulation results show that the extended RTSP method further improves the accuracy and energy consumption, i.e., it can provide an average accuracy of 0.23 ?s in a large multi-hop clustered network while using only 1/7th of the energy consumed by FTSP in the long run.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: December 29, 2015
    Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Muhammad Akhlaq, Tarek R. Sheltami
  • Hybrid plasma source
    Patent number: 9215789
    Abstract: Systems and methods for generating plasma are disclosed. A system for generating a plasma includes a helicon plasma source and an electron cyclotron resonance (ECR) plasma source structured and arranged together to generate a plasma in a tube.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: December 15, 2015
    Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Ahmed M. Hala, Lutfi Oksuz
  • Automated microextraction technique for the analysis of N-nitrosamines in water
    Patent number: 9212979
    Abstract: An automated headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry for the determination of four N-nitrosamines in groundwater samples is developed. Response surface methodology technique was employed to investigate the optimized extraction conditions of headspace solid-phase microextraction using CombiPAL autosampler. The method was applied to determine the N-nitrosamine concentrations in groundwater samples.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: December 15, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Basheer Chanbasha, Mousa Yaser Amayreh
  • Methods and systems for tokenizing multilingual textual documents
    Patent number: 9208134
    Abstract: Methods and systems for tokenizing multilingual textual documents are provided. A method implemented in a computer infrastructure, includes determining an attribute of a current character in input text, the attribute of the current character indicating one or more classes of characters the current character is assigned thereto. The method further includes determining one or more attributes of one or more next characters in the input text, the one or more attributes of the one or more next characters indicating the one or more classes the one or more next characters are assigned thereto. The method further includes constructing a token of the input text that includes the current character and the one or more next characters, the attribute of the current character and the one or more attributes of the one or more next characters intersecting with each other.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 8, 2015
    Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventor: Ibrahim Alkharashi
  • Fully automated analytical method for determination of chloroethers in water and urine sample
    Patent number: 9207220
    Abstract: A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas chromatography-mass spectrometry (GC-MS) is used to automate the extraction process. In this method, the SPME fiber is exposed to a sample in direct immersion. After exposure, the fiber is desorbed at the injection port of GC-MS.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 8, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Basheer Chanbasha, Mousa Yaser Amayreh
  • Fully automated analytical method for determination of chloroethers in water and urine sample
    Patent number: 9207219
    Abstract: A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas chromatography-mass spectrometry (GC-MS) is used to automate the extraction process. In this method, the SPME fiber is exposed to a sample in direct immersion. After exposure, the fiber is desorbed at the injection port of GC-MS.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 8, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Basheer Chanbasha, Mousa Yaser Amayreh
  • 6-Piperazinyl-3,4-dihydroquinazolin-2(1H)-ones
    Patent number: 9205087
    Abstract: A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D2 receptor antagonist and 5-HT1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of these compounds.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 8, 2015
    Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventor: Nisar Ullah
  • DIRECTIONAL SYSTEM DRILLING AND METHOD
    Publication number: 20150345222
    Abstract: A directional drilling system consisting of a four-motor drilling head for better steering in directional drilling and vertical/horizontal drilling is developed. The rotational speed of each motor is independently controlled. The use of four motors in coordination with other traditional drilling variables allow precise control of the drilling direction and optimization of the rate of penetration (ROP). The top and right motors rotate in opposite directions to the bottom and left rotors to stabilize the roll rotation of the drilling head. Inclination (pitch) movement is obtained by increasing/decreasing the speed of the top motor while decreasing/increasing the speed of the lower motor. The Azimuth (yaw) movement is obtained similarly using the right and left motors. The drilling power is derived from down hole motors. A drill string transmits the drilling fluid and force on bit.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 3, 2015
    Applicants: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Moustafa Elshafei, Amar Khoukhi, Abdulaziz Al-Maged, Mohammad Talib
  • 6-piperazinyl-3,4-dihydroquinazolin-2(1)-ones
    Patent number: 9199969
    Abstract: A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D2 receptor antagonist and 5-HT1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of these compounds.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 1, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventor: Nisar Ullah
  • HYBRID PLASMA SOURCE
    Publication number: 20150342020
    Abstract: Systems and methods for generating plasma are disclosed. A system for generating a plasma includes a helicon plasma source and an electron cyclotron resonance (ECR) plasma source structured and arranged together to generate a plasma in a tube.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: King Abdulaziz City for Science and Technology
    Inventors: Ahmed M. HALA, Lutfi Oksuz
  • Removal of heavy metals from aqueous solutions using vanadium-doped titanium dioxide nanoparticles
    Patent number: 9193608
    Abstract: The removal of heavy metals from aqueous solutions using metal-doped titanium dioxide nanoparticles is a method that comprises contacting the aqueous solution with metal-doped titanium dioxide nanoparticles. The three transition metals tungsten, vanadium and iron were selected for doping of titanium dioxide. Removal of the toxic heavy metals Pb(II), Zn(II) and Cd(II) was studied intensively by using metal-doped titanium dioxide to measure the isotherms and kinetics. The isotherms studies showed that the highest removal percentage of Pb(II) was achieved by W-doped titanium dioxide, while Fe-doped titanium dioxide and V-doped titanium dioxide performed better for removal of Zn(II) and Cd(II), respectively.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: November 24, 2015
    Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Mousab Salah Aldeen Mirghani, Reyad Awwad Khalaf Shawabkeh, Naim Moh'd Abdallah Faqir, Mamdouh Ahmed Al-Harthi, Mohammad Ba Shammakh
  • Two-phase flow sensor using cross-flow-induced vibrations
    Patent number: 9188471
    Abstract: A sensor system detects the occurrence of two-phase flow by comparing records of fluidelastic force coefficients, which are characteristically different for single-phase and two-phase flows. A baseline of measurements is obtained for a single phase flow, and a baseline of measurements is obtained for a two-phase flow. Measurements of the amplitude and phase of the fluidelastic forces are recorded, and the corresponding fluidelastic force coefficients computed. The fluidelastic force coefficients can be determined for any flow, and compared to the baselines to determine whether the flow is a single-phase or two-phase flow.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: November 17, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Yehia Abel Khulief, Wael Hasan Ahmed
  • Controlled growth of MTT zeolite by microwave-assisted hydrothermal synthesis
    Patent number: 9186659
    Abstract: This invention relates a process for preparing MTT zeolites which process includes the preparation of a sol-gel from an aluminate solution, mixing a structure directing agent with the sol-gel to form a structure directing mixture, mixing a silica with the structure directing mixture to form a reaction mixture, heating the reaction mixture in a microwave reactor to form an initial zeolite, and removing the structure directing agent to form the MTT zeolite. The invention also relates to MTT zeolites produced by the process, including ZSM-23 zeolites, as well as zeolite membranes, coating and catalysts.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: November 17, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Oki Muraza, Idris Bakare, Adnan Al Amer, Zain Yamani
  • CLOSED LOOP PI/PID CONTROLLER TUNING METHOD FOR STABLE AND INTEGRATING PROCESS WITH TIME DELAY
    Publication number: 20150323912
    Abstract: A new online controller tuning method in closed-loop mode improves over the Ziegler-Nichols continuous cycling method. The method is a closed-loop setpoint step experiment PI/PID controller tuning method, which uses a P-controller with a gain Kc0, runs a setpoint experiment, and obtains a plurality of PI/PID-controller settings directly from three data from the setpoint experiment, wherein the three data are overshoot (?yp??y?)/?y?), time to reach overshoot or first peak tp, and relative steady state output change b=?y?/?ys, wherein ?ys is a setpoint change, ?y? is a steady-state output change after setpoint step test, and ?yp is a peak output change at time tp.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 12, 2015
    Applicants: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventor: Mohammad Shamsuzzoha
  • Reconfigurable Nth-order filter
    Patent number: 9184729
    Abstract: The reconfigurable Nth-order filter includes a CCII adopting active current division networks for implementing the proposed filter. This digitally programmable second generation current conveyor leads to wide control of filter coefficients for reconfiguration of the filter. Programmability characteristics are demonstrated through experimental results obtained from integrated circuit chips fabricated in a 0.18 ?m CMOS process.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: November 10, 2015
    Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventor: Hussain Alzaher
  • Twin screw extruder
    Patent number: 9180618
    Abstract: An extruder is disclosed, and more particularly, a twin screw extruder for mixing, compounding, kneading and/or extruding of materials. The twin screw extruder includes a barrel assembly having a housing. The twin screw extruder further includes a first screw provided within the housing and comprising threads. The twin screw extruder further includes a second screw provided within the housing and comprising a threaded portion and a shaft portion devoid of threads. A drive system which drives the first screw and the second screw.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: November 10, 2015
    Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventor: Fares D. Alsewailem
  • Method and apparatus for aseptic transfer of biological material
    Patent number: 9181522
    Abstract: The present application discloses a novel biological material transfer apparatus and methods of using the same. The apparatus is made up of double walled barrel shaped tip chamber to house either the single tip or multiple tips of fixed size and a unique ball head to transfer the biological material from one location to another location in an aseptic method. The tip has a fixed shape and size and a ball head which makes the process of picking and transferring of biological material easy, safe and convenient to use with large scale samples. The apparatus is further equipped with an ultra violet light which sterilize the tips just before their use making the entire process of transferring of biological material highly aseptic.
    Type: Grant
    Filed: March 23, 2013
    Date of Patent: November 10, 2015
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventor: Mohammad Ahmed Khiyami