Patents by Inventor Dian Dong

Dian Dong 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).

  • Publication number: 20230032582
    Abstract: Various embodiments include a testing apparatus capable of testing gas flowing in a duct. The apparatus may include: a housing; a sampling tube extending from the housing to be inserted into the duct, the sampling tube including a gas entry channel and a gas exit channel isolated from each other, with a gas inlet of the gas entry channel and a gas outlet of the gas exit channel disposed in a part of the sampling tube leading into the duct and disposed at the same side of the sampling tube, wherein the gas inlet and the gas outlet have matching gas through-flow areas; and a sensor module disposed in the housing and in gas communication with the gas entry channel to test gas sampled from the gas entry channel.
    Type: Application
    Filed: January 9, 2020
    Publication date: February 2, 2023
    Applicant: Siemens Schweiz AG
    Inventors: Fang Zhao, Ning Liu, Shi Ding Xue, Long Song, Dian Dong, Ming Xue Xu, Meng Hui Liu