Patents by Inventor Qichang NI

Qichang NI 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).

  • Bioretention pond for rainwater treatment
    Patent number: 12378145
    Abstract: A bioretention pond includes a pond body and an overflow weir. The pond body includes a pond wall and a layered substrate. The layered substrate includes from bottom to top: a gravel layer, a transition layer, a pyrite layer, a plant layer, a pebble water layer, an organic layer, and a water storage layer. The overflow weir is disposed on the pebble water layer with a space left above the center of the pebble layer. The organic layer is disposed in the space and covers the pebble layer. The water storage layer is disposed onto the organic layer. The pond body further includes a perforated pipe disposed in the gravel layer; and the perforated pipe includes an outlet end disposed at the top part of the pyrite layer.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: August 5, 2025
    Assignees: CHONGQING UNIVERSITY, CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO., LTD
    Inventors: Hongxiang Chai, Xinyue Wang, Zhiyu Shao, Haiyuan Ma, Jingjing Hu, Qiang He, Yanhong Xu, Qichang Ni, Fujian Liu
  • BIORETENTION POND FOR RAINWATER TREATMENT
    Publication number: 20230416129
    Abstract: A bioretention pond includes a pond body and an overflow weir. The pond body includes a pond wall and a layered substrate. The layered substrate includes from bottom to top: a gravel layer, a transition layer, a pyrite layer, a plant layer, a pebble water layer, an organic layer, and a water storage layer. The overflow weir is disposed on the pebble water layer with a space left above the center of the pebble layer. The organic layer is disposed in the space and covers the pebble layer. The water storage layer is disposed onto the organic layer. The pond body further includes a perforated pipe disposed in the gravel layer; and the perforated pipe includes an outlet end disposed at the top part of the pyrite layer.
    Type: Application
    Filed: September 22, 2022
    Publication date: December 28, 2023
    Inventors: Hongxiang CHAI, Xinyue WANG, Zhiyu SHAO, Haiyuan MA, Jingjing HU, Qiang HE, Yanhong XU, Qichang NI, Fujian LIU