Patents by Inventor Siddarth H. Krishna

Siddarth H. Krishna 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).

  • Catalytic production of 1,2,5,6-hexanetetrol from levoglucosenone
    Patent number: 11247956
    Abstract: A method of making of 1,2,5,6-hexanetetrol (“tetrol”). The method includes the steps of contacting a reaction solution containing water as well as levoglucosenone, dihydrolevoglucosenone, and/or levoglucosanol, with a catalyst containing metal and acid functionalities, at temperature of from about 100° C. to about 175° C., and a hydrogen partial pressure of from about 1 bar to about 50 bar (about 0.1 MPa to about 5 MPa), and for a time wherein at least a portion of the reactant is converted into 1,2,5,6-hexanetetrol.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: February 15, 2022
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Siddarth H. Krishna, George W. Huber, James A. Dumesic
  • CATALYTIC PRODUCTION OF 1,2,5,6-HEXANETETROL FROM LEVOGLUCOSENONE
    Publication number: 20210130269
    Abstract: A method of making of 1,2,5,6-hexanetetrol (“tetrol”). The method includes the steps of contacting a reaction solution containing water as well as levoglucosenone, dihydrolevoglucosenone, and/or levoglucosanol, with a catalyst containing metal and acid functionalities, at temperature of from about 100° C. to about 175° C., and a hydrogen partial pressure of from about 1 bar to about 50 bar (about 0.1 MPa to about 5 MPa), and for a time wherein at least a portion of the reactant is converted into 1,2,5,6-hexanetetrol.
    Type: Application
    Filed: April 19, 2019
    Publication date: May 6, 2021
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Siddarth H. Krishna, George W. Huber, James A. Dumesic