Patents by Inventor Abdessalem Yezza

Abdessalem Yezza 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 producing poly-?-hydroxybutyrate
    Patent number: 7666636
    Abstract: A process for producing poly-?-hydroxybutyrate (PHB) involves contacting maple sap with bacteria (e.g Alcaligenes latus) that convert sugars into poly-?-hydroxybutyrate. The use of maple sap is comparable to or better than the use of pure sucrose, and the use of maple sap results in PHB having higher weight average molecular weight than PHB produced from pure sucrose, making maple sap-derived PHB more suitable for commercial utilization.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: February 23, 2010
    Assignee: National Research Council of Canada
    Inventors: Abdessalem Yezza, Jalal Hawari
  • Process for producing poly-beta-hydroxybutyrate
    Publication number: 20070249027
    Abstract: A process for producing poly-?-hydroxybutyrate (PHB) involves contacting maple sap with bacteria (e.g Alcaligenes latus) that convert sugars into poly-?-hydroxybutyrate. The use of maple sap is comparable to or better than the use of pure sucrose, and the use of maple sap results in PHB having higher weight average molecular weight than PHB produced from pure sucrose, making maple sap-derived PHB more suitable for commercial utilization.
    Type: Application
    Filed: March 9, 2007
    Publication date: October 25, 2007
    Inventors: Abdessalem Yezza, Jalal Hawari