Other submissions included a vertical grand piano, smart goalie gloves and cheese made of potatoes
A robot dog that does the vacuuming, a flatpack coffin and a cross between a cookie and a cake were among the things that UK-based inventors thought up last year.
A Guardian analysis of patent applications listed by the Intellectual Property Office (IPO) found 5,955 involving at least one UK-based inventor had been published in 2023.
