Patents by Inventor Carlos Duque

Carlos Duque 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).

  • Devolatilization of plastomer pellets
    Patent number: 12281191
    Abstract: The devolatilization of plastomer pellets is undertaken using nitrogen that is recycled in the process. Volatile hydrocarbons are removed from the nitrogen in a hydrocarbon extraction vessel (e.g. an adsorbent bed). In an embodiment, the recycled nitrogen contains less than 300 ppm of volatile hydrocarbons after being treated in the adsorbent bed.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 22, 2025
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Abolfazl Noorjahan, Stephen Brown, Lawrence Van Asseldonk, Robert Van Asseldonk, Jeffrey Cahill, Carlos Duque, William Oberg
  • DEVOLATILIZATION OF PLASTOMER PELLETS
    Publication number: 20220169758
    Abstract: The devolatilization of plastomer pellets is undertaken using nitrogen that is recycled in the process. Volatile hydrocarbons are removed from the nitrogen in a hydrocarbon extraction vessel (e.g. an adsorbent bed). In an embodiment, the recycled nitrogen contains less than 300 ppm of volatile hydrocarbons after being treated in the adsorbent bed.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 2, 2022
    Applicant: NOVA Chemical (International) S.A.
    Inventors: Abolfazl Noorjahan, Stephen Brown, Lawrence Van Asseldonk, Robert Van Asseldonk, Jeffrey Cahill, Carlos Duque, William Oberg