abstract:Hemi-Sync is a trademarked brand name for a patented processUS Patent 3884218: "Method of inducing and maintaining various stages of sleep in the human being"US Patent 5213562: "Method of inducing mental, emotional and physical states of consciousness, including specific mental activity, in human beings"US Patent 5356368: "Method of and apparatus for inducing desired states of consciousness" used to create audio patterns containing binaural beats, which are commercialized in the form of audio CDs. Interstate Industries Inc.