ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,753, issued on May 5, was assigned to SIEMENS SCHWEIZ AG (Zurich).
"Measurement apparatus for measuring air flowing inside pipeline" was invented by Fang Zhao (Beijing City, China), Ning Liu (Beijing), Shi Ding Xue (Beijing), Long Song (Tianjin, China), Dian Dong (Beijing), Ming Xue Xu (Beijing) and Meng Hui Liu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 eac...