Patents by Inventor Mengchen DU

Mengchen DU 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).

  • Rainwater bioretention facility for synchronized nitrogen and phosphorus removal in rainfall conditions
    Patent number: 12662805
    Abstract: A stormwater bioretention facility, including a pool body. The pool body includes an overflow layer, a cover layer, a filtration layer, an upper drainage layer, a biochar layer, a submerged layer, and a lower drainage layer from top to bottom. An upper drainage pipe is disposed in the upper drainage layer; a lower drainage pipe is disposed in the lower drainage layer. The upper drainage pipe and the lower drainage pipe include side walls including a plurality of inlet holes. The lower drainage pipe includes a water outlet raised to be level with the top surface of the submerged layer, and the submerged layer is filled with iron shavings and quartz sand material. The pool body further includes an overflow well having an opening covered by a manhole cover. The water outlets of the upper drainage pipe and the lower drainage pipe are connected to the overflow well.
    Type: Grant
    Filed: November 11, 2024
    Date of Patent: June 23, 2026
    Assignee: CHONGQING UNIVERSITY
    Inventors: Hongxiang Chai, Mengdi Li, Haiyuan Ma, Mengchen Du
  • RAINWATER BIORETENTION FACILITY FOR SYNCHRONIZED NITROGEN AND PHOSPHORUS REMOVAL IN RAINFALL CONDITIONS
    Publication number: 20260028813
    Abstract: A stormwater bioretention facility, including a pool body. The pool body includes an overflow layer, a cover layer, a filtration layer, an upper drainage layer, a biochar layer, a submerged layer, and a lower drainage layer from top to bottom. An upper drainage pipe is disposed in the upper drainage layer; a lower drainage pipe is disposed in the lower drainage layer. The upper drainage pipe and the lower drainage pipe include side walls including a plurality of inlet holes. The lower drainage pipe includes a water outlet raised to be level with the top surface of the submerged layer, and the submerged layer is filled with iron shavings and quartz sand material. The pool body further includes an overflow well having an opening covered by a manhole cover. The water outlets of the upper drainage pipe and the lower drainage pipe are connected to the overflow well.
    Type: Application
    Filed: November 11, 2024
    Publication date: January 29, 2026
    Inventors: Hongxiang CHAI, Mengdi LI, Haiyuan MA, Mengchen DU