Patents by Inventor Chengqing Qi

Chengqing Qi 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).

  • Biomass waste materials as a set-retardation agent in cement or concrete
    Patent number: 11851371
    Abstract: A concrete mixture is provided. The mixture includes cement powder, a plant biomaterial in a solid form, wherein the plant biomaterial does not comprise ash, and concrete aggregate, wherein a ratio of cement powder to the biomaterial ranges from 10:1 to 100:1. Methods of controlling concrete setting by adding a plant biomaterial in a solid form to a concrete mixture are also provided.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: December 26, 2023
    Assignee: University of Louisville Research Foundation, Inc.
    Inventors: Zhihui Sun, Noppadon Sathitsuksanoh, Chengqing Qi
  • BIOMASS WASTE MATERIALS AS A SET-RETARDATION AGENT IN CEMENT OR CONCRETE
    Publication number: 20220033304
    Abstract: A concrete mixture is provided. The mixture includes cement powder, a plant biomaterial in a solid form, wherein the plant biomaterial does not comprise ash, and concrete aggregate, wherein a ratio of cement powder to the biomaterial ranges from 10:1 to 100:1. Methods of controlling concrete setting by adding a plant biomaterial in a solid form to a concrete mixture are also provided.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Inventors: Zhihui Sun, Noppadon Sathitsuksanoh, Chengqing Qi