Patents by Inventor Wenqiang CAO

Wenqiang CAO 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).

  • 2-AMINOSELENOPHEN COMPOUNDS WITH ANTI-DRUG RESISTANT BACTERIA ACTIVITY AND A METHOD OF PREPARING THE SAME
    Publication number: 20220356164
    Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I): is disclosed. R1 and R2 are each independently H, alkyl, or phenyl, or R1 and R2 form —(CH2)3—, —(CH2)4—, or —(CH2)5—, and R3 is —COOCH2CH3, or CN. A method of preparing the compound of formula (I) is also disclosed.
    Type: Application
    Filed: July 17, 2021
    Publication date: November 10, 2022
    Applicant: ZHUHAI JINAN SELENIUM SOURCE NANOTECHNOLOGY CO., LTD.
    Inventors: Wenqiang CAO, Chang LIU, Maoxun YANG, Haiwei LI, Yikang CHEN
  • Heat exchanger module
    Patent number: 11340021
    Abstract: A heat exchanger module includes a condenser unit and an evaporator unit. The evaporator unit includes N pieces of parallel-flow heat exchangers arranged adjacently, and the coolant temperatures reduce gradually from the first to Nth parallel-flow heat exchangers along an air flow direction in the evaporator unit. A counter-current mounting method is adopted in the parallel-flow heat exchangers of the evaporator unit in the heat exchanger module provided by the present invention. The coolant temperature of each parallel-flow heat exchanger is lower than that of the previous one, the temperature difference between air and coolant is relatively uniform by using the counter-current method so as to reach a better heat exchange effect.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: May 24, 2022
    Assignee: SHENZHEN ENVICOOL TECHNOLOGY CO., LTD
    Inventors: Wenqiang Cao, Qingzhen Zeng, Jun Liu
  • P-bromoaniline cassic acid ester with antibacterial activity and a method of preparing the same
    Patent number: 10882818
    Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 5, 2021
    Assignee: ZHUHAI JINAN SELENIUM SOURCE NANOTECHNOLOGY CO., LTD.
    Inventors: Wenqiang Cao, Hong Liu, Chengyuan Liang, Yikang Chen, Haiwei Li, Kangxiong Wu
  • HEAT EXCHANGER MODULE
    Publication number: 20180292144
    Abstract: A heat exchanger module includes a condenser unit and an evaporator unit. The evaporator unit includes N pieces of parallel-flow heat exchangers arranged adjacently, and the coolant temperatures reduce gradually from the first to Nth parallel-flow heat exchangers along an air flow direction in the evaporator unit. A counter-current mounting method is adopted in the parallel-flow heat exchangers of the evaporator unit in the heat exchanger module provided by the present invention. The coolant temperature of each parallel-flow heat exchanger is lower than that of the previous one, the temperature difference between air and coolant is relatively uniform by using the counter-current method so as to reach a better heat exchange effect.
    Type: Application
    Filed: June 8, 2017
    Publication date: October 11, 2018
    Applicant: SHENZHEN ENVICOOL TECHNOLOGY CO., LTD
    Inventors: Wenqiang CAO, Qingzhen ZENG, Jun LIU