Patents by Inventor Hilda Bouza Vroman

Hilda Bouza Vroman 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).

  • Highly siliceous form of zeolite RHO
    Patent number: 11939225
    Abstract: A composition can include a Rho zeolite with a RHO topology having a Si to B ratio or a Si to Al ratio greater than or equal to 8. Making such a composition can include heating an aqueous reaction mixture having a molar ratio of atomic Si to atomic B of about 4 to about 50 or a molar ratio of atomic Si to atomic Al of about 4 to about 50 in the presence of a C4-C6 diquat of N,2-dimethylbenzimidazole structure directing agent to a temperature of at least 75° C. to produce a Rho zeolite.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 26, 2024
    Assignee: ExxonMobil Technology and Engineering Company
    Inventors: Joseph M. Falkowski, Hilda Bouza Vroman, Allen W. Burton, Eugene Terefenko, Kanmi Mao, Karl G. Strohmaier
  • Highly Siliceous Form of Zeolite RHO
    Publication number: 20210380425
    Abstract: A composition can include a Rho zeolite with a RHO topology having a Si to B ratio or a Si to A1 ratio greater than or equal to 8. Making such a composition can include heating an aqueous reaction mixture having a molar ratio of atomic Si to atomic B of about 4 to about 50 or a molar ratio of atomic Si to atomic Al of about 4 to about 50 in the presence of a C4-C6 diquat of N,2-dimethylbenzimidazole structure directing agent to a temperature of at least 75° C. to produce a Rho zeolite.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 9, 2021
    Inventors: Joseph M. Falkowski, Hilda Bouza Vroman, Allen W. Burton, Eugene Terefenko, Kanmi Mao, Karl G. Strohmaier