ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,220, issued on May 6, was assigned to SharkNinja Operating LLC (Needham, Mass.).

"Cleaning apparatus" was invented by Bartholomew Lampard (London), Jennifer Andrews (Cambridge, Mass.), Fariha Ahmed (Brighton, Mass.), Jay Castro (Brookline, Mass.), Oliver G. Holmes (London), Joe Baxter (London), Wil McArdle (Needham, Mass.), Ognjen Vrdoljak (Laval, Canada), Lois Jones (London), Joshua Kingsbury (Canterbury, Great Britain), David T. Barker (Goole, Great Britain), Jemima L. C. Meil (Lancaster, Great Britain), Shiqi Mu (Suzhou, China), Heliang Chen (Suzhou, China), Dawei Liu (Suzhou, China), Xiang Zhou (Suzhou, China), Cong Su (Suzhou, China) and Mingliang Qin (Suzhou, China).

Accord...