Patents by Inventor Osama Ghanem Rashed MASSARWEH

Osama Ghanem Rashed MASSARWEH 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).

  • Cement composition containing an oil ash set retarder
    Patent number: 11414350
    Abstract: Oil ash comprising carbon in an amount in the range of 60% to 89% is an effective set retarder in a cement composition. The oil ash prolonged the initial and final setting time of cement paste and retained the slump flow in concrete for a longer time than concrete without the retarder. Also, the addition of oil ash to cement marginally improved the compressive strength of concrete. The advantage of oil ash is that it can be used as a solid retarder of cement hydration to substitute for the conventional commercial retarding admixtures with a limited shelf-life.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 16, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Osama Ghanem Rashed Massarweh, Mohammed Maslehuddin, Salah Uthman Al-Dulaijan, Mohammed Shameem
  • CEMENT COMPOSITION CONTAINING AN OIL ASH SET RETARDER
    Publication number: 20200239365
    Abstract: Oil ash comprising carbon in an amount in the range of 60% to 89% is an effective set retarder in a cement composition. The oil ash prolonged the initial and final setting time of cement paste and retained the slump flow in concrete for a longer time than concrete without the retarder. Also, the addition of oil ash to cement marginally improved the compressive strength of concrete. The advantage of oil ash is that it can be used as a solid retarder of cement hydration to substitute for the conventional commercial retarding admixtures with a limited shelf-life.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Osama Ghanem Rashed MASSARWEH, Mohammed Maslehuddin, Salah Uthman Al-Dulaijan, Mohammed Shameem