Patents by Inventor Alexander FRIEMANN DMITRIEV

Alexander FRIEMANN DMITRIEV 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).

  • Patent number: 12290844
    Abstract: A method for sorting of items (1) based on material type, comprising: —depositing an array of nanostructures (3) onto a surface portion of an item (1) to form a material identification tag (2), the nanostructures having an optical response dependent on the material type of the item onto which they are deposited, —illuminating the material identification tag using a light source (30), —determining at least one optical extinction and/or reflectance peak of the illuminated material identification tag, which peak is dependent on a material type of the item, —categorizing the item based on the detected optical extinction and/or reflectance spectrum, and —sorting the item in accordance with the categorization.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: May 6, 2025
    Assignee: IDENTINANO AB
    Inventors: Alexander Friemann Dmitriev, Rafael Cichelero
  • Publication number: 20240109104
    Abstract: A method for sorting of items (1) based on material type, comprising: —depositing an array of nanostructures (3) onto a surface portion of an item (1) to form a material identification tag (2), the nanostructures having an optical response dependent on the material type of the item onto which they are deposited, —illuminating the material identification tag using a light source (30), —determining at least one optical extinction and/or reflectance peak of the illuminated material identification tag, which peak is dependent on a material type of the item, —categorizing the item based on the detected optical extinction and/or reflectance spectrum, and —sorting the item in accordance with the categorization.
    Type: Application
    Filed: April 7, 2021
    Publication date: April 4, 2024
    Inventor: Alexander FRIEMANN DMITRIEV