Patents by Inventor Chi Keung Li

Chi Keung Li 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).

  • Steam cleaning apparatus
    Patent number: 11793386
    Abstract: A steam cleaning apparatus for delivering steam of a surface to be cleaned is provided with a steam unit, a handle tube and an indexable base. The base can be indexed between a wide orientation where a long edge of the base is orthogonal to the direction of travel and a narrow orientation where a short edge of the base is orthogonal to the direction of travel.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: October 24, 2023
    Assignee: BISSELL Inc.
    Inventors: Alan J. Krebs, Chi Keung Li, Jing Yang, Ming Luo, Jason W. Pruiett
  • STEAM CLEANING APPARATUS
    Publication number: 20210038048
    Abstract: A steam cleaning apparatus for delivering steam of a surface to be cleaned is provided with a steam unit, a handle tube and an indexable base. The base can be indexed between a wide orientation where a long edge of the base is orthogonal to the direction of travel and a narrow orientation where a short edge of the base is orthogonal to the direction of travel.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 11, 2021
    Inventors: Alan J. Krebs, Chi Keung Li, Jing Yang, Ming Luo, Jason W. Pruiett
  • Steam cleaning apparatus
    Patent number: 10791903
    Abstract: A steam cleaning apparatus for delivering steam of a surface to be cleaned is provided with a steam unit, a handle tube and an indexable base. The base can be indexed between a wide orientation where a long edge of the base is orthogonal to the direction of travel and a narrow orientation where a short edge of the base is orthogonal to the direction of travel.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 6, 2020
    Assignee: BISSELL Inc.
    Inventors: Alan J. Krebs, Chi Keung Li, Jing Yang, Ming Luo
  • STEAM CLEANING APPARATUS
    Publication number: 20180213995
    Abstract: A steam cleaning apparatus for delivering steam of a surface to be cleaned is provided with a steam unit, a handle tube and an indexable base. The base can be indexed between a wide orientation where a long edge of the base is orthogonal to the direction of travel and a narrow orientation where a short edge of the base is orthogonal to the direction of travel.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 2, 2018
    Inventors: Alan J. Krebs, Chi Keung Li, Jing Yang, Ming Luo