Patents by Inventor Maria Khalid

Maria Khalid 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).

  • Hybrid polyvinyl alcohol/ linseed dual crosslinked nanocomposite hydrogel loaded with doxycycline for the production of acne patches
    Patent number: 12268698
    Abstract: A nanocomposite hydrogel sheet and doxycycline loaded acne healing patches derived therefrom. The present invention relates to the biocompatible hydrogel sheet matrix comprising polyvinyl alcohol, linseed mucilage extract, nano zinc-oxide crosslinked dually via covalent linkages and free radical polymerization by e-beam exposure. The pore size of the nanocomposite hydrogel sheet ranges between 0.1-0.5 ?m. The doxycycline loaded acne patches derived from nanocomposite hydrogel sheet were able to inhibit the growth of S. aureus in an in vitro bacterial growth inhibition assay.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 8, 2025
    Inventors: Muhammad Raza Shah, Maria Khalid, Tooba Jabri, Shafi Ullah