Patents by Inventor Xiaoxiang Cheng

Xiaoxiang Cheng 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).

  • Anaerobic-AO-SACR combined advanced nitrogen removal system and technology for high ammonia-nitrogen wastewater
    Patent number: 11919790
    Abstract: An anaerobic-AO-SACR combined advanced nitrogen removal system for high ammonia-nitrogen wastewater, in which high ammonia-nitrogen wastewater first enters an anaerobic reactor to remove most of organic matters from the wastewater, effluent water enters an AO reactor for nitrogen removal by pre-denitrification in an anoxic zone and for removal of the remaining organic matters and nitrification of ammonia nitrogen in an aerobic zone, and then the effluent water enters an intermediate pool. Meanwhile, under the control of a water quality testing device and a PLC controller, a part of raw water is introduced into the intermediate pool to adjust the carbon nitrogen ratio of the wastewater.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: March 5, 2024
    Assignee: SHANDONG JIANZHU UNIVERSITY
    Inventors: Kai Wang, Daoji Wu, Fengxun Tan, Congwei Luo, Xiaoxiang Cheng, Hongye Li, Yu Tian
  • ANAEROBIC-AO-SACR COMBINED ADVANCED NITROGEN REMOVAL SYSTEM AND TECHNOLOGY FOR HIGH AMMONIA-NITROGEN WASTEWATER
    Publication number: 20230159361
    Abstract: An anaerobic-AO-SACR combined advanced nitrogen removal system for high ammonia-nitrogen wastewater, in which high ammonia-nitrogen wastewater first enters an anaerobic reactor to remove most of organic matters from the wastewater, effluent water enters an AO reactor for nitrogen removal by pre-denitrification in an anoxic zone and for removal of the remaining organic matters and nitrification of ammonia nitrogen in an aerobic zone, and then the effluent water enters an intermediate pool. Meanwhile, under the control of a water quality testing device and a PLC controller, a part of raw water is introduced into the intermediate pool to adjust the carbon nitrogen ratio of the wastewater.
    Type: Application
    Filed: September 11, 2020
    Publication date: May 25, 2023
    Applicant: SHANDONG JIANZHU UNIVERSITY
    Inventors: KAI WANG, DAOJI WU, FENGXUN TAN, CONGWEI LUO, XIAOXIANG CHENG, HONGYE LI, YU TIAN
  • LED fluorescent lamp emulator circuitry
    Patent number: 11265988
    Abstract: Circuitry 31 for a solid-state lighting arrangement 20 designed for as a replacement for a gas discharge lamp used in a lighting fixture having a ballast. The circuitry 31 unsafe flow of current through the solid-state lighting arrangement 20, under non-operational conditions and during installation of the lighting arrangement, so as to provide compatibility with safety standards for use with discharge lamps.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: March 1, 2022
    Assignee: ELB ELECTRONICS, INC.
    Inventors: Xiaoxiang Cheng, Dennis Stephens
  • LED FLUORESCENT LAMP EMULATOR CIRCUITY
    Publication number: 20200015330
    Abstract: Circuitry 31 for a solid-state lighting arrangement 20 designed for as a replacement for a gas discharge lamp used in a lighting fixture having a ballast. The circuitry 31 unsafe flow of current through the solid-state lighting arrangement 20, under non-operational conditions and during installation of the lighting arrangement, so as to provide compatibility with safety standards for use with discharge lamps.
    Type: Application
    Filed: September 3, 2019
    Publication date: January 9, 2020
    Inventor: Xiaoxiang Cheng
  • LED fluorescent lamp emulator circuitry
    Patent number: 10470272
    Abstract: Circuitry 31 for a solid-state lighting arrangement 20 designed for as a replacement for a gas discharge lamp used in a lighting fixture having a ballast. The circuitry 31 unsafe flow of current through the solid-state lighting arrangement 20, under non-operational conditions and during installation of the lighting arrangement, so as to provide compatibility with safety standards for use with discharge lamps.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 5, 2019
    Assignee: ELB Electronics, Inc.
    Inventor: Xiaoxiang Cheng
  • LED fluorescent lamp emulator circuitry
    Patent number: 10398004
    Abstract: Circuitry 31 for a solid-state lighting arrangement 20 designed for as a replacement for a gas discharge lamp used in a lighting fixture having a ballast. The circuitry 31 unsafe flow of current through the solid-state lighting arrangement 20, under non-operational conditions and during installation of the lighting arrangement, so as to provide compatibility with safety standards for use with discharge lamps.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 27, 2019
    Assignee: ELB ELECTRONICS, INC.
    Inventor: Xiaoxiang Cheng