Patents by Inventor Mahmoud M. Khader

Mahmoud M. Khader 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).

  • Patent number: 11951457
    Abstract: Provided herein is a novel silica-supported nickel nanocomposite and a novel one-pot solution combustion synthesis of that nanocomposite. The method allows the synthesis of small size nickel nanoparticles (e.g., 3 nm to 40 nm) for which a considerable percentage of nickel is inserted into silica, experiencing strong metal-support interaction. These exceptional physicochemical properties make them desirable for various industrial applications, such as electronic, heterogeneous catalysis as well as conversion and storage of energy.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: April 9, 2024
    Inventors: Sardar Ali, Dharmesh Kumar, Ahmed Gamal, Mahmoud M. Khader, Muftah El-Naas
  • Patent number: 11458457
    Abstract: This invention relates to a novel palladium catalyst for the substantially complete oxidative removal of methane from exhaust streams at low operating temperatures compared to other current palladium catalysts and to methods of preparing the catalyst. Use of the catalyst to remove methane from vehicle exhaust streams, crude oil production and processing exhaust streams, petroleum refining exhaust streams and natural gas production and processing exhaust streams.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 4, 2022
    Assignee: QATAR UNIVERSITY
    Inventors: Mahmoud M. Khader, Mohammed J. Al-Marri, Sardar Ali, Ahmed Gamal Abdelmoneim, Anand Kumar
  • Publication number: 20220212175
    Abstract: Provided herein is a novel silica-supported nickel nanocomposite and a novel one-pot solution combustion synthesis of that nanocomposite. The method allows the synthesis of small size nickel nanoparticles (e.g., 3 nm to 40 nm) for which a considerable percentage of nickel is inserted into silica, experiencing strong metal-support interaction. These exceptional physicochemical properties make them desirable for various industrial applications, such as electronic, heterogeneous catalysis as well as conversion and storage of energy.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 7, 2022
    Inventors: Sardar ALI, Dharmesh KUMAR, Ahmed GAMAL, Mahmoud M. KHADER, Muftah EL-NAAS
  • Patent number: 11311860
    Abstract: This invention relates to a novel nickel catalyst and a novel one-pot solution combustion synthesis of that catalyst for the CO2 reforming and low temperature steam reformation of methane. The novel nickel catalyst has exceptional activity for dry reforming and steam reforming of methane, and exhibits excellent resilience to deactivation due to carbon formation.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 26, 2022
    Assignee: QATAR UNIVERSITY
    Inventors: Mohammed J. Al-Marri, Mohammed Ali H. Salah Saad, Mahmoud M. Khader, Sardar Ali, Ahmed Gamal Abdelmoneim
  • Patent number: 10475942
    Abstract: A photodetector cell may include a substrate, and a first contact carried by the substrate and having a first work function value. The photodetector cell may include a second contact carried by the substrate and having a second work function value different from the first work function value, and a semiconductor wire carried by the substrate and having a third work function value between the first and second work function values. The semiconductor wire may be coupled between the first and second contacts and comprising a photodiode junction.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 12, 2019
    Inventors: Manjeri P. Anantram, Md Golam Rabbani, Mahmoud M. Khader, Reza Nekovei, Amit Verma
  • Publication number: 20190099744
    Abstract: This invention relates to a novel nickel catalyst and a novel one-pot solution combustion synthesis of that catalyst for the CO2 reforming and low temperature steam reformation of methane. The novel nickel catalyst has exceptional activity for dry reforming and steam reforming of methane, and exhibits excellent resilience to deactivation due to carbon formation.
    Type: Application
    Filed: July 13, 2018
    Publication date: April 4, 2019
    Inventors: Mohammed J. Al-Marri, Mohammed Ali H. Salah Saad, Mahmoud M. Khader, Sardar Ali, Ahmed Gamal Abdelmoneim
  • Publication number: 20180369787
    Abstract: This invention relates to a novel palladium catalyst for the substantially complete oxidative removal of methane from exhaust streams at low operating temperatures compared to other current palladium catalysts and to methods of preparing the catalyst. Use of the catalyst to remove methane from vehicle exhaust streams, crude oil production and processing exhaust streams, petroleum refining exhaust streams and natural gas production and processing exhaust streams.
    Type: Application
    Filed: November 23, 2016
    Publication date: December 27, 2018
    Applicant: QATAR UNIVERSITY
    Inventors: Mahmoud M. KHADER, Mohammed J. AL-MARRI, Sardar ALI, Ahmed Gamal ABDELMONEIM, Anand KUMAR
  • Publication number: 20180261705
    Abstract: A photodetector cell may include a substrate, and a first contact carried by the substrate and having a first work function value. The photodetector cell may include a second contact carried by the substrate and having a second work function value different from the first work function value, and a semiconductor wire carried by the substrate and having a third work function value between the first and second work function values. The semiconductor wire may be coupled between the first and second contacts and comprising a photodiode junction.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Inventors: Manjeri P. Anantram, Golam Rabbani, Mahmoud M. Khader, Reza Nekovei, Amit Verma
  • Patent number: 9997656
    Abstract: A photodetector cell may include a substrate, and a first contact carried by the substrate and having a first work function value. The photodetector cell may include a second contact carried by the substrate and having a second work function value different from the first work function value, and a semiconductor wire carried by the substrate and having a third work function value between the first and second work function values. The semiconductor wire may be coupled between the first and second contacts and comprising a photodiode junction.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 12, 2018
    Inventors: Manjeri P. Anantram, Md Golam Rabbani, Mahmoud M. Khader, Reza Nekovei, Amit Verma
  • Patent number: 9911889
    Abstract: Certain embodiments of the present invention may be directed to a transistor structure. The transistor structure may include a semiconductor substrate. The semiconductor substrate may include a drift region, a collector region, an emitter region, and a lightly-doped/undoped region. The lightly-doped/undoped region may be lightly-doped and/or undoped. The transistor structure may also include a heterostructure. The heterostructure forms a heterojunction with the lightly-doped/undoped region. The transistor structure may also include a collector terminal. The collector terminal is in contact with the collector region. The transistor structure may also include a gate terminal. The gate terminal is in contact with the heterostructure. The transistor structure may also include an emitter terminal. The emitter terminal is in contact with the lightly-doped/undoped region and the emitter region.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: March 6, 2018
    Assignees: QATAR UNIVERSITY, TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Aditya Chandra Sai Ratcha, Amit Verma, Reza Nekovei, Mahmoud M. Khader
  • Publication number: 20180013032
    Abstract: Certain embodiments of the present invention may be directed to a transistor structure. The transistor structure may include a semiconductor substrate. The semiconductor substrate may include a drift region, a collector region, an emitter region, and a lightly-doped/undoped region. The lightly-doped/undoped region may be lightly-doped and/or undoped. The transistor structure may also include a heterostructure. The heterostructure forms a heterojunction with the lightly-doped/undoped region. The transistor structure may also include a collector terminal. The collector terminal is in contact with the collector region. The transistor structure may also include a gate terminal. The gate terminal is in contact with the heterostructure. The transistor structure may also include an emitter terminal. The emitter terminal is in contact with the lightly-doped/undoped region and the emitter region.
    Type: Application
    Filed: September 8, 2017
    Publication date: January 11, 2018
    Inventors: Aditya Chandra Sai RATCHA, Amit VERMA, Reza NEKOVEI, Mahmoud M. KHADER
  • Publication number: 20170323994
    Abstract: Certain embodiments of the present invention may be directed to a transistor structure. The transistor structure may include a semiconductor substrate. The semiconductor substrate may include a drift region, a collector region, an emitter region, and a lightly-doped/undoped region. The lightly-doped/undoped region may be lightly-doped and/or undoped. The transistor structure may also include a heterostructure. The heterostructure forms a heterojunction with the lightly-doped/undoped region. The transistor structure may also include a collector terminal. The collector terminal is in contact with the collector region. The transistor structure may also include a gate terminal. The gate terminal is in contact with the heterostructure. The transistor structure may also include an emitter terminal. The emitter terminal is in contact with the lightly-doped/undoped region and the emitter region.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 9, 2017
    Inventors: Aditya Chandra Sai RATCHA, Amit VERMA, Reza NEKOVEI, Mahmoud M. KHADER
  • Patent number: 9793430
    Abstract: Certain embodiments of the present invention may be directed to a transistor structure. The transistor structure may include a semiconductor substrate. The semiconductor substrate may include a drift region, a collector region, an emitter region, and a lightly-doped/undoped region. The lightly-doped/undoped region may be lightly-doped and/or undoped. The transistor structure may also include a heterostructure. The heterostructure forms a heterojunction with the lightly-doped/undoped region. The transistor structure may also include a collector terminal. The collector terminal is in contact with the collector region. The transistor structure may also include a gate terminal. The gate terminal is in contact with the heterostructure. The transistor structure may also include an emitter terminal. The emitter terminal is in contact with the lightly-doped/undoped region and the emitter region.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: October 17, 2017
    Assignees: QATAR UNIVERSITY, TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Aditya Chandra Sai Ratcha, Amit Verma, Reza Nekovei, Mahmoud M. Khader
  • Publication number: 20160181453
    Abstract: A photodetector cell may include a substrate, and a first contact carried by the substrate and having a first work function value. The photodetector cell may include a second contact carried by the substrate and having a second work function value different from the first work function value, and a semiconductor wire carried by the substrate and having a third work function value between the first and second work function values. The semiconductor wire may be coupled between the first and second contacts and comprising a photodiode junction.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Manjeri P. ANANTRAM, Md Golam Rabbani, Mahmoud M. Khader, Reza Nekovei, Amit Verma
  • Patent number: 4762600
    Abstract: A novel, activated catalyst is provided for the synthesis of ammonia via the photoassisted reduction of molecular nitrogen by water. The novel catalyst is an incompletely reoxidized hydrogen reduced ferric oxide which is prepared by the reduction of an iron oxide such as .alpha.-Fe.sub.2 O.sub.3 in an atmosphere of water vapor and hydrogen followed by oxidation oxygen or in air. The use of the activated catalyst in photoassisted methods for synthesis of ammonia produces yields of ammonia which are many times the stoichiometric equivalent of the Fe(II) in the catalyst employed.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: August 9, 1988
    Assignee: Trustees of Boston University
    Inventors: Mahmoud M. Khader, Norman N. Lichtin