ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,601, issued on Sept. 29, was assigned to XINGMAI INNOVATION TECHNOLOGY (SUZHOU) Co. LTD. (Suzhou, China).

"Pool robot and automatic underwater spreading method" was invented by Shengle Wang (Suzhou, China) and Shilei Zhang (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a pool robot and an automatic underwater spreading method. The pool robot includes a body, a storage module configured to store a to-be-spread reagent, where the storage module is disposed on the body, and a first opening is disposed on the storage module a drive module disposed on the body, connected to the storage module, and configured to d...