Patents by Inventor Chengdong Wu

Chengdong Wu 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: 12280562
    Abstract: The present disclosure is generally directed to toilet equipment, and more particularly to a toilet lid and seat that comprises fiber reinforced cement board, fiber reinforced calcium silicate board or sintered stone. In an embodiment, a toilet lid or seat includes a core structural layer having a shape and size associated with the toilet lid, and having a first surface and a second surface opposite the first surface, wherein the core structural layer comprises fiber reinforced cement board or fiber reinforced calcium silicate board. In another embodiment, a toilet lid includes a core structural layer having a shape and size associated with the toilet lid, and having a first surface and a second surface opposite the first surface, wherein the core structural layer comprises sintered stone.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: April 22, 2025
    Assignee: Topseat International, Inc.
    Inventors: Chengdong Wu, Jie Zhang
  • Publication number: 20250009194
    Abstract: A hinge assembly for a toilet seat includes a mounting base configured to be coupled to a toilet bowl, the mounting base comprising a mounting cup. The hinge assembly also includes a mounting post configured to be coupled to the toilet seat and configured to be inserted into the mounting cup. At least one of the mounting cup and the mounting post comprises a magnet such that the mounting post and the mounting cup form a magnetic connection when the mounting post is inserted into the mounting cup.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 9, 2025
    Inventor: Chengdong Wu
  • Publication number: 20240277191
    Abstract: A system includes a toilet seat, a toilet lid comprising a core structural layer and a second layer, and at least one hinge assembly pivotally coupling the toilet seat and toilet lid. Each of the at least one hinge assembly includes a hinge portion in contact with an exterior surface of the second layer. Each of the at least one hinge assembly also includes a hinge connection plate in contact with an interior surface of the second layer, the hinge connection plate having multiple first fastener holes, each first fastener hole having a protrusion.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 22, 2024
    Inventor: Chengdong Wu
  • Publication number: 20240181747
    Abstract: The present disclosure is generally directed to toilet equipment, and more particularly to a toilet lid and seat that comprises fiber reinforced cement board, fiber reinforced calcium silicate board or sintered stone. In an embodiment, a toilet lid or seat includes a core structural layer having a shape and size associated with the toilet lid, and having a first surface and a second surface opposite the first surface, wherein the core structural layer comprises fiber reinforced cement board or fiber reinforced calcium silicate board. In another embodiment, a toilet lid includes a core structural layer having a shape and size associated with the toilet lid, and having a first surface and a second surface opposite the first surface, wherein the core structural layer comprises sintered stone.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 6, 2024
    Inventors: Chengdong Wu, Jie Zhang
  • Patent number: 10702107
    Abstract: A toilet seat assembly includes a toilet seat, a toilet lid, and one or more hinges pivotally coupling the toilet seat and toilet lid. At least one of the toilet seat and the toilet lid includes a light source, a power source configured to power the light source, and a controller configured to control operation of the light source. The light source can include an electroluminescent (EL) light source or a side emitting fiber optic cable.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Topseat International, Inc.
    Inventors: Chengdong Wu, Merle Edwards
  • Publication number: 20180333017
    Abstract: A toilet seat assembly includes a toilet seat, a toilet lid, and one or more hinges pivotally coupling the toilet seat and toilet lid. At least one of the toilet seat and the toilet lid includes a light source, a power source configured to power the light source, and a controller configured to control operation of the light source. The light source can include an electroluminescent (EL) light source or a side emitting fiber optic cable.
    Type: Application
    Filed: May 17, 2017
    Publication date: November 22, 2018
    Inventors: Chengdong Wu, Merle Edwards
  • Patent number: 9648998
    Abstract: A laminar composite toilet lid and seat are formed of a composite laminar material. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes a first decorative exterior layer disposed on a first surface of the, core structural layer. The toilet lid further includes a second decorative exterior layer disposed on a second surface of the core structural layer, the second surface opposite the first surface. The toilet lid still further includes a painted edge configured to cover seams between the core structural layer and the first and second decorative exterior layers.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: May 16, 2017
    Assignee: Topseat International, Inc.
    Inventor: Chengdong Wu
  • Patent number: 9445697
    Abstract: A toilet lid or seat for use with a toilet includes first and second metallic layers bonded together along an edge to form a shell having a shape and size associated with the toilet lid or seat, the shell having an interior volume. The toilet lid or seat also includes a core structural layer disposed within the interior volume of the shell. The toilet lid or seat further includes a plurality of exterior layers disposed on exterior surfaces of the shell, the exterior layers configured to envelop the toilet lid or seat.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: September 20, 2016
    Assignee: Topseat International, Inc.
    Inventor: Chengdong Wu
  • Patent number: 9346245
    Abstract: Embodiments of the present disclosure include a laminate composite toilet lid and seat and a method of manufacturing thereof. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes a first decorative graphic layer disposed on a first surface of the core structural layer. The toilet lid further includes a plurality of exterior layers disposed on exterior surfaces of the core structural layer and the first decorative graphic layer, the exterior layers configured to envelop the toilet lid.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 24, 2016
    Assignee: Topseat International, Inc.
    Inventors: Chengdong Wu, Jie Zhang
  • Patent number: 9301660
    Abstract: Embodiments of the present disclosure include a laminate composite toilet lid and seat and a method of manufacturing thereof. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes first and second resilient layers disposed on first and second surfaces of the core structural layer. The toilet lid further includes a plurality of exterior layers disposed on exterior surfaces of the core structural layer and the first and second resilient layers, the exterior layers configured to envelop the toilet lid.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: April 5, 2016
    Assignee: Topseat International, Inc.
    Inventors: Chengdong Wu, Jie Zhang
  • Publication number: 20140215698
    Abstract: A toilet lid or seat for use with a toilet includes first and second metallic layers bonded together along an edge to form a shell having a shape and size associated with the toilet lid or seat, the shell having an interior volume. The toilet lid or seat also includes a core structural layer disposed within the interior volume of the shell. The toilet lid or seat further includes a plurality of exterior layers disposed on exterior surfaces of the shell, the exterior layers configured to envelop the toilet lid or seat.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Applicant: TOPSEAT INTERNATIONAL, INC.
    Inventor: Chengdong Wu
  • Publication number: 20140047627
    Abstract: A laminar composite toilet lid and seat are formed of a composite laminar material. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes a first decorative exterior layer disposed on a first surface of the, core structural layer. The toilet lid further includes a second decorative exterior layer disposed on a second surface of the core structural layer, the second surface opposite the first surface. The toilet lid still further includes a painted edge configured to cover seams between the core structural layer and the first and second decorative exterior layers.
    Type: Application
    Filed: October 28, 2013
    Publication date: February 20, 2014
    Applicant: TOPSEAT INTERNATIONAL, INC.
    Inventor: Chengdong Wu
  • Publication number: 20120255106
    Abstract: Embodiments of the present disclosure include a laminate composite toilet lid and seat and a method of manufacturing thereof. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes a first decorative graphic layer disposed on a first surface of the core structural layer. The toilet lid further includes a plurality of exterior layers disposed on exterior surfaces of the core structural layer and the first decorative graphic layer, the exterior layers configured to envelop the toilet lid.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Applicant: Topseat International, Inc.
    Inventors: Chengdong Wu, Jie Zhang
  • Publication number: 20120255107
    Abstract: Embodiments of the present disclosure include a laminate composite toilet lid and seat and a method of manufacturing thereof. The toilet lid includes a core structural layer having a shape and size associated with the toilet lid. The toilet lid also includes first and second resilient layers disposed on first and second surfaces of the core structural layer. The toilet lid further includes a plurality of exterior layers disposed on exterior surfaces of the core structural layer and the first and second resilient layers, the exterior layers configured to envelop the toilet lid.
    Type: Application
    Filed: June 1, 2012
    Publication date: October 11, 2012
    Applicant: Topseat International, Inc.
    Inventors: Chengdong Wu, Jie ZHANG
  • Patent number: D752193
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 22, 2016
    Assignee: Topseat International, Inc.
    Inventor: Chengdong Wu
  • Patent number: D854667
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 23, 2019
    Assignee: Topseat International, Inc.
    Inventor: Chengdong Wu
  • Patent number: D855783
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: August 6, 2019
    Assignee: Topseat International, Inc.
    Inventor: Chengdong Wu