ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,302, issued on Feb. 10, was assigned to HYTTO PTE. LTD. (Singapore).
"Sexual stimulation device" was invented by Dan Liu (Singapore) and Jilin Qiu (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a sexual stimulation device. The sexual stimulation device comprising a first portion, a second portion, a connecting member a top surface and an optical effect generating member. The first portion is insertable into an orifice of a user. The second portion is disposed outside the orifice of the user. The connecting member joins the first portion to the second portion. The top surface provided in the second portion....