Patents by Inventor Ligui He

Ligui He 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).

  • Publication number: 20260069732
    Abstract: A disinfection application, particularly, to a device capable of disinfecting a ventilator as well as a face mask and a hose, and more particularly, to an ozone disinfection device, an ozone disinfection system, and an ozone disinfection method. The ozone disinfection device includes: a sealed disinfection space, a gas distribution unit, an ozone generation unit, a suction pump, a filter, and a control module.
    Type: Application
    Filed: November 13, 2025
    Publication date: March 12, 2026
    Inventor: Ligui HE
  • Publication number: 20260027282
    Abstract: A suction device includes a negative pressure generator, a connector and a mask; the negative pressure generator comprises a housing and a piston rod, wherein the housing is internally provided with a cavity, an upper end of the housing is provided with an avoidance hole communicated with the cavity, and a lower end thereof is provided with an opening communicated with the cavity; the piston rod comprises a push-pull rod and a piston sleeved on the push-pull rod, an upper end of the push-pull rod runs through the avoidance hole, and the piston is movably and hermetically connected to an inner side wall of the housing by means of a sealing ring; an upper side of the mask is provided with a through first connecting cylinder, and a lower side thereof is provided with a flexible annular pad configured to fit with the face.
    Type: Application
    Filed: September 30, 2025
    Publication date: January 29, 2026
    Inventor: Ligui HE
  • Publication number: 20250380967
    Abstract: A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.
    Type: Application
    Filed: August 29, 2025
    Publication date: December 18, 2025
    Inventors: Ligui HE, David LUO
  • Patent number: 12491278
    Abstract: A disinfection application, particularly, to a device capable of disinfecting a ventilator as well as a face mask and a hose, and more particularly, to an ozone disinfection device, an ozone disinfection system, and an ozone disinfection method. The ozone disinfection device includes: a sealed disinfection space, a gas distribution unit, an ozone generation unit, a suction pump, a filter, and a control module.
    Type: Grant
    Filed: November 22, 2024
    Date of Patent: December 9, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Publication number: 20250366888
    Abstract: A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.
    Type: Application
    Filed: August 13, 2025
    Publication date: December 4, 2025
    Inventors: Ligui HE, David LUO
  • Patent number: D1089631
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: August 19, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1090818
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: August 26, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1097123
    Type: Grant
    Filed: April 30, 2024
    Date of Patent: October 7, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1100904
    Type: Grant
    Filed: November 25, 2024
    Date of Patent: November 4, 2025
    Inventor: Ligui He
  • Patent number: D1101932
    Type: Grant
    Filed: August 30, 2024
    Date of Patent: November 11, 2025
    Inventor: Ligui He
  • Patent number: D1102588
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: November 18, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1109318
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: January 13, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1104249
    Type: Grant
    Filed: August 26, 2024
    Date of Patent: December 2, 2025
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1112719
    Type: Grant
    Filed: January 2, 2025
    Date of Patent: February 10, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1112720
    Type: Grant
    Filed: January 9, 2025
    Date of Patent: February 10, 2026
    Assignee: DCSTAR INC.
    Inventor: Ligui He
  • Patent number: D1108623
    Type: Grant
    Filed: November 30, 2023
    Date of Patent: January 6, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1115027
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: February 24, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1117734
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: March 10, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1118898
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: March 17, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He
  • Patent number: D1120296
    Type: Grant
    Filed: August 24, 2024
    Date of Patent: March 24, 2026
    Assignee: DCSTAR INC
    Inventor: Ligui He