Patents by Inventor Madhuvandhi Ravi

Madhuvandhi Ravi 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: 11180415
    Abstract: Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods make use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents may be combined with Portland cement and an alkali activator to form a blended cement. The cementitious reagents can be used in concrete to substantially reduce the CO2 emission associated with cement production.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: November 23, 2021
    Assignee: TERRA CO2 TECHNOLOGY HOLDINGS, INC.
    Inventors: Donald John Lake, Madhuvandhi Ravi
  • Patent number: 11161786
    Abstract: Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods make use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents may be combined with Portland cement and an alkali activator to form a blended cement. The cementitious reagents can be used in concrete to substantially reduce the CO2 emission associated with cement production.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: November 2, 2021
    Assignee: TERRA CO2 TECHNOLOGY HOLDINGS, INC.
    Inventors: Donald John Lake, Madhuvandhi Ravi
  • Publication number: 20210292235
    Abstract: Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods make use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents may be combined with Portland cement and an alkali activator to form a blended cement. The cementitious reagents can be used in concrete to substantially reduce the C02 emission associated with cement production.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 23, 2021
    Inventors: Donald John Lake, Madhuvandhi Ravi
  • Publication number: 20210107833
    Abstract: Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods make use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents may be combined with Portland cement and an alkali activator to form a blended cement. The cementitious reagents can be used in concrete to substantially reduce the CO2 emission associated with cement production.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Donald John Lake, Madhuvandhi Ravi