Patents by Inventor Khaled Fathy El-Tahlawy

Khaled Fathy El-Tahlawy 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).

  • Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same
    Patent number: 8975387
    Abstract: Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 10, 2015
    Assignee: North Carolina State University
    Inventors: Richard A. Venditti, Joel J. Pawlak, Abdus Salam, Khaled Fathy El-Tahlawy