Splenda is the commercial name and registered trade mark of a sucralose-based artificial sweetener derived from sugar, owned by the British company Tate & Lyle. Sucralose was discovered by Tate & Lyle and researchers at Queen Elizabeth College, University of London, in 1976. Tate & Lyle subsequently developed sucralose-based Splenda products in partnership with Johnson & Johnson subsidiary McNeil Nutritionals LLC. Since its approval by the United States government in 1998 and introduction there in 1999, sucralose has overtaken Equal in the $1.5 billion artificial sweetener market, holding a 62% market share. According to market research firm IRI Splenda sold $212 million in 2006 in the U.S. while Equal sold $48.7 million.