ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,557, issued on May 12, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Gyeonggi-Do, South Korea).

"Method of automatically adjusting strength of suction power of suction motor and cordless vacuum cleaner therefor" was invented by Seongu Lee (Suwon-si, South Korea), Hyunkoo Kang (Suwon-si, South Korea), Seehyun Kim (Suwon-si, South Korea), Sanghyuk Park (Suwon-si, South Korea), Yeongju Lee (Suwon-si, South Korea), Jaeshik Jeong (Suwon-si, South Korea), Jeonghee Cho (Suwon-si, South Korea), Jiwon Choi (Suwon-si, South Korea) and Junggyun Han (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method, performed by a cordles...