ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,532,873, issued on Jan. 27.
"Device for extracting foreign matter in fish tank" was invented by Jeong-Ryeol Park (Guri-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a device for extracting foreign matter in a fish tank and, more particularly, to a device for extracting foreign matter in a fish tank, wherein excrement of and food for fish, remaining in the fish tank, may be removed without a water exchange process, a filter is inhibited from being clogged, and foreign matter filtered by the filter is inhibited from entering the fish tank again. To this end, the device comprises a body into which water is ...