Patents by Inventor Filipe Viana Ferreira

Filipe Viana Ferreira 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).

  • Determining interfacial tension for fluid-fluid-solid environments
    Patent number: 11243156
    Abstract: Aspects of the invention include determining, by a first AFM tip, a first snap-off force of a solid surface immersed in a first fluid, determining, by a second AFM tip, a second snap-off force, determining, by a third AFM tip, a third snap-off force, determining, by the first AFM tip, a fourth snap-off force of a droplet of the first fluid immersed in the second fluid on the solid surface, determining, by the second AFM tip, a fifth snap-off force, determining, by the third AFM tip, a sixth snap-off force, determining a first capillary force for first AFM tip and first droplet based on first snap-off force and fourth snap-off force, determining a second capillary force for second AFM tip and first droplet and a third capillary force for third AFM tip and first droplet, and determining interfacial tension between first fluid and second fluid based on the capillary forces.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: February 8, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Engel, Filipe Viana Ferreira, Rodrigo Neumann Barros Ferreira, Ronaldo Giro, Mathias Steiner
  • DETERMINING INTERFACIAL TENSION FOR FLUID-FLUID-SOLID ENVIRONMENTS
    Publication number: 20220011212
    Abstract: Aspects of the invention include determining, by a first AFM tip, a first snap-off force of a solid surface immersed in a first fluid, determining, by a second AFM tip, a second snap-off force, determining, by a third AFM tip, a third snap-off force, determining, by the first AFM tip, a fourth snap-off force of a droplet of the first fluid immersed in the second fluid on the solid surface, determining, by the second AFM tip, a fifth snap-off force, determining, by the third AFM tip, a sixth snap-off force, determining a first capillary force for first AFM tip and first droplet based on first snap-off force and fourth snap-off force, determining a second capillary force for second AFM tip and first droplet and a third capillary force for third AFM tip and first droplet, and determining interfacial tension between first fluid and second fluid based on the capillary forces.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 13, 2022
    Inventors: Michael Engel, Filipe Viana Ferreira, Rodrigo Neumann Barros Ferreira, Ronaldo Giro, Mathias Steiner