Patents by Inventor Saied Delagah

Saied Delagah 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).

  • Method for making high flux, high salt rejection cellulose desalting membranes
    Patent number: 8123945
    Abstract: A method is provided for producing a high flux, high salt rejection cellulose acetate desalination membrane. In this method, cellulose acetate polymer is dissolved in a first solvent such as methylene chloride or 2-methyltetrahydrofuran to produce a solution. Further steps involve stirring the solution, and thereafter permitting the solution to settle, for a time sufficient for a majority of the cellulose acetate to precipitate out of the solution to form a cellulose acetate precipitate. Next, the cellulose acetate precipitate is stirred into an excess methanol. Thereafter, the cellulose acetate is filtered out and used in making the desalination membrane.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: February 28, 2012
    Assignees: The United States of America as represented by the Secretary of the Interior, The Bereau of Reclamation, Separation Systems Technology Inc.
    Inventors: Andrew Patrick Murphy, Saied Delagah, Robert Lee Riley
  • METHOD FOR MAKING HIGH FLUX, HIGH SALT REJECTION CELLULOSE DESALTING MEMBRANES
    Publication number: 20080277828
    Abstract: A method is provided for producing a high flux, high salt rejection cellulose acetate desalination membrane. In this method, cellulose acetate polymer is dissolved in a first solvent such as methylene chloride or 2-methyltetrahydrofuran to produce a solution. Further steps involve stirring the solution, and thereafter permitting the solution to settle, for a time sufficient for a majority of the cellulose acetate to precipitate out of the solution to form a cellulose acetate precipitate. Next, the cellulose acetate precipitate is stirred into an excess methanol. Thereafter, the cellulose acetate is filtered out and used in making the desalination membrane.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventors: Andrew Patrick MURPHY, Saied DELAGAH, Robert Lee RILEY