Patents by Inventor Abdulrahim Ahmad Al-Rebeh

Abdulrahim Ahmad Al-Rebeh 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).

  • Methods for determining low sulfate concentrations in synthetic urea samples, produced in a manufacturing process and containing high levels of impurities
    Patent number: 10330654
    Abstract: In one aspect, disclosed herein is a method for determining sulfate concentration in a sample, comprising: a) providing a liquid sample comprising urea and at least one impurity; b) concentrating the liquid sample under conditions effective to reduce the liquid volume; c) forming a dilute sample solution by diluting the concentrated liquid sample of step b) in water; and d) analyzing the dilute sample solution of step c) with ion chromatography to determine if a concentration of sulfate is present in the provided liquid sample of step a); wherein the analyzing of step d) is capable of determining the presence of a sulfate concentration present in an amount less than about 1 ppm.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: June 25, 2019
    Assignee: SABIC Global Technologies B.V.
    Inventors: Khalid Mahmood, Naji Al-Haiz, Muhammad Khamees Al-Yousuf, Abdulrahim Ahmad Al-Rebeh