ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,616, issued on March 3, was assigned to CELLPACK CORP. (Jeju-si, South Korea).

"Liquid mulching agent composition containing seaweed extract" was invented by Young Doo Choi (Jeju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a liquid mulching agent composition, which is environmentally friendly due to use of seaweed, facilitates soil coating, and has high light blocking efficiency, making it possible to control heat retention and water content in the soil. The liquid mulching agent composition includes a seaweed extract, a first component including at least one selected from the group consisting of humic acid, fulvic ac...