Patents by Inventor Mohamed E. El-Hefnawy

Mohamed E. El-Hefnawy 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).

  • Amphiphilic asphaltene ionic liquids as demulsifiers for heavy petroleum crude oil-water emulsions
    Patent number: 10907107
    Abstract: Provided herein are amphiphilic asphaltene ionic liquids and methods of making and using the amphiphilic asphaltene ionic liquids, e.g. as demulsifiers for petroleum crude oil-water emulsions.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: February 2, 2021
    Assignee: King Abdulaziz University
    Inventors: Ali Issa Ismail, Ayman Mohamady Atta, Mohamed Hassan El-Newehy, Mohamed E. EL-Hefnawy
  • Amphiphilic asphaltene ionic liquids as demulsifiers for heavy petroleum crude oil-water emulsions
    Patent number: 10767119
    Abstract: Provided herein are amphiphilic asphaltene ionic liquids and methods of making and using the amphiphilic asphaltene ionic liquids, e.g. as demulsifiers for petroleum crude oil-water emulsions.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 8, 2020
    Assignee: King Abdulaziz University
    Inventors: Ali Issa Ismail, Ayman Mohamady Atta, Mohamed Hassan El-Newehy, Mohamed E. El-Hefnawy