Patents by Inventor Purnendu Kumar NAYAK

Purnendu Kumar NAYAK 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).

  • HYDROXYPROPYL METHYL CELLULOSE DERIVATIVES TO STABILIZE POLYPEPTIDES
    Publication number: 20230364020
    Abstract: The present invention provides formulations comprising polypeptides and hydroxypropyl methylcellulose acetate succinate (HPMCAS) derivatives. The formulations are stable; for example, during high temperature processing and in possible low pH environments. In addition, the HPMCAS derivatives provide protection to a pH sensitive protein against acidic degradation products from aqueous hydrolysis of poly(lactic-co-glycolic acid) (PLGA) in PLGA-based delivery systems.
    Type: Application
    Filed: March 31, 2023
    Publication date: November 16, 2023
    Inventors: Purnendu Kumar NAYAK, Debby Pei-Shan CHANG, Karthikan RAJAGOPAL, Jonathan ZARZAR