Patents by Inventor Mohamed Defrawi

Mohamed Defrawi 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).

  • Process for preparing highly absorbent, low bulk density sodium silicate
    Patent number: 4011302
    Abstract: A process for preparing low bulk density, highly absorbent, amorphous, hydrous, water-soluble alkali metal silicate particles having high internal porosity by spray drying a mixture of an aqueous sodium or potassium silicate solution and hydrogen peroxide.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: March 8, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mohamed Defrawi