Patents by Inventor Bibiana Margarita Rosa Vallejo Díaz

Bibiana Margarita Rosa Vallejo Díaz 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).

  • In vitro method for sun protection factor determination
    Patent number: 11415506
    Abstract: The invention provides an in vitro method for the determination of sun protection factor (SPF), in order to gain reproducibility and accuracy and replace the use of tests on living beings. Natural substrates of the human skin, like hyaluronic acid are tested in the form of solutions or in the form of a solid film in a modified spectrophotometer, at concentrations below 1% w/v. Once calibrated, the method is used to corroborate the protection factor offered by commercial sunscreens.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: August 16, 2022
    Assignee: UNIVERSIDAD NACIONAL DE COLOMBIA
    Inventors: Bibiana Margarita Rosa Vallejo Díaz, Clara Eugenia Plazas Bonilla, Helber De Jesús Barbosa Barbosa, Nestor Jaime Torres Salcedo, Angie Viviana Vitola Domínguez, Aura Rocío Hernández Camargo
  • IN VITRO METHOD FOR SUN PROTECTION FACTOR DETERMINATION
    Publication number: 20200386674
    Abstract: The invention provides an in vitro method for the determination of sun protection factor (SPF), in order to gain reproducibility and accuracy and replace the use of tests on living beings. Natural substrates of the human skin, like hyaluronic acid are tested in the form of solutions or in the form of a solid film in a modified spectrophotometer, at concentrations below 1% w/v. Once calibrated, the method is used to corroborate the protection factor offered by commercial sunscreens.
    Type: Application
    Filed: July 25, 2018
    Publication date: December 10, 2020
    Inventors: Bibiana Margarita Rosa Vallejo Díaz, Clara Eugenia Plazas Bonilla, Helber De Jesús Barbosa Barbosa, Nestor Jaime Torres Salcedo, Angie Viviana Vitola Domínguez, Aura Rocío Hernández Camargo