ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,333, issued on March 11, was assigned to MAJESTY HOLDINGS Co. LTD. (China).
"All-plastic trigger spray pump" was invented by Peihui Liang (Zhongshan, China), Maoyong Zhu (Zhongshan, China), Yonglei Zhang (Zhongshan, China) and Jun Li (Zhongshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A full-plastic trigger spray pump, wherein a lower part of the pump body is connected to a locking cover, a liquid spray channel is in the pump body, a nozzle is provided at an outlet of the liquid spray channel, a liquid outlet channel is communicated with the liquid spray channel, a liquid guide chamber is provided on the liquid outlet channel and a liq...