ALEXANDRIA, Va., May 5 -- United States Patent no. 12,616,084, issued on May 5, was assigned to Chengdu Worang Zhichuang Technology Partnership (LP) (Chengdu, China).

"Air-material mixing and spraying actuator with an application method thereof" was invented by Fucheng Wu (Chengdu, China), Hu Yang (Chengdu, China), Changyu Shi (Chengdu, China), Xiaoming Liu (Chengdu, China), Jialin Li (Chengdu, China) and Ling Ma (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air-material mixing and spraying actuator, which relates to the field of devices for spraying materials to deep soil. The actuator includes a material mixing and spraying pipe, a material temporary storage assembly, a second material ...