Patents by Inventor Mamdouh Ahmed Al-Harthi

Mamdouh Ahmed Al-Harthi 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: 10483012
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: November 19, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
  • Publication number: 20190341165
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Application
    Filed: June 28, 2019
    Publication date: November 7, 2019
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed AL-HARTHI, Osamah Awadh BIN-DAHMAN
  • Patent number: 10395792
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 27, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
  • Patent number: 10377888
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardancy, crystallinity and surface morphology.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: August 13, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed Al-Harthi
  • Patent number: 10332651
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: June 25, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
  • Patent number: 10294353
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 21, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed Al-Harthi
  • Publication number: 20190115118
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Application
    Filed: August 13, 2018
    Publication date: April 18, 2019
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh Ahmed AL-HARTHI, Osamah Awadh Bin-dahman
  • Publication number: 20190077943
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 14, 2019
    Applicant: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed AL-HARTHI
  • Publication number: 20190077942
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 14, 2019
    Applicant: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed Al-Harthi
  • Publication number: 20190043639
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 7, 2019
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
  • Patent number: 10113057
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: October 30, 2018
    Assignee: King Fahd University of Pertoleum and Minerals
    Inventor: Mamdouh Ahmed Al-Harthi
  • Publication number: 20180305527
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Application
    Filed: May 7, 2018
    Publication date: October 25, 2018
    Applicant: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed AL-HARTHI
  • Patent number: 10090078
    Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: October 2, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
  • Publication number: 20180244871
    Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh Ahmed AL-HARTHI, Mukarram ZUBAIR
  • Patent number: 10059818
    Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: August 28, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
  • Patent number: 10049784
    Abstract: Nanocomposite films comprising conductive nanofiller dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of filler and differing electrical resistivity values are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer matrix and nanosheets and/or nanoplatelets of graphene as the conductive filler are provided. In addition, a process for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: August 14, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman, Mostafizur Rahaman
  • Patent number: 9994700
    Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.
    Type: Grant
    Filed: May 28, 2017
    Date of Patent: June 12, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Mamdouh Ahmed Al-Harthi
  • Patent number: 9976004
    Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 22, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
  • Publication number: 20170335073
    Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 23, 2017
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
  • Publication number: 20170335089
    Abstract: A method for enhancing an interaction between graphene nanoparticles and a poly(styrene-co-methylmethacrylate), including modifying graphene with nitric acid to form graphene nanoparticles surface modified with one or more oxygen functionalities, melt blending the poly(styrene-co-methylmethacrylate) and the modified graphene nanoparticles to obtain a nanocomposite, and exposing the nanocomposite to microwave irradiation to form defects in the graphene nanoparticles. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), and the graphene nanoparticles are surface modified with oxygen functionalities.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 23, 2017
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh Ahmed AL-HARTHI, Mukarram ZUBAIR