Patents by Inventor Maria Augusta Fernandes Del Nero de Freitas

Maria Augusta Fernandes Del Nero de Freitas 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).

  • Sponge surface
    Patent number: D999471
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: September 19, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Maria Augusta Fernandes Del Nero de Freitas, Samuel Feliciano dos Santos, Mateus Agostinho da Silva