protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights; "`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form"
standing between or separating two objects or areas; "Paris--where the same city lies on both sides of an intervening river"; "after reaching the top of the hill he looked across an intervening meadow to another line of hills"
occurring or falling between events or points in time; "so much had happened during the intervening years"