Patents by Inventor Rok SITAR

Rok SITAR 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).

  • Generation of ammonia/hydrogen mixtures and/or hydrogen-enriched fuel mixtures
    Patent number: 12528697
    Abstract: Methods for the operation of membrane reactors (MRs) are disclosed for the efficient production of hydrogen-enriched fuel blends with tunable composition and high hydrogen recovery at both elevated and isobaric pressure operation. These methods enable use of greatly reduced operating temperatures relative to packed bed reactors (PBRs) and elimination of the need for a secondary separation unit operation. These methods provide greater productivity and hydrogen recovery while relaxing membrane selectivity constraints relative to conventional MR operation.
    Type: Grant
    Filed: January 14, 2023
    Date of Patent: January 20, 2026
    Assignee: Colorado School of Mines
    Inventors: Colin A. Wolden, Rok Sitar, James Douglas Way
  • GENERATION OF AMMONIA/HYDROGEN MIXTURES AND/OR HYDROGEN-ENRICHED FUEL MIXTURES
    Publication number: 20250101327
    Abstract: Methods for the operation of membrane reactors (MRs) are disclosed for the efficient production of hydrogen-enriched fuel blends with tunable composition and high hydrogen recovery at both elevated and isobaric pressure operation. These methods enable use of greatly reduced operating temperatures relative to packed bed reactors (PBRs) and elimination of the need for a secondary separation unit operation. These methods provide greater productivity and hydrogen recovery while relaxing membrane selectivity constraints relative to conventional MR operation.
    Type: Application
    Filed: January 13, 2023
    Publication date: March 27, 2025
    Inventors: Colin A. WOLDEN, Rok SITAR, James Douglas WAY