A more thorough explanation:

Term: Res Litigiosae
Definition: Res Litigiosae refers to property or rights that are currently under dispute in a legal case. These are things that are in litigation, meaning they are the subject of a pending legal action.
Examples: A house that is being fought over in a divorce settlement, a piece of land that two neighbors are arguing over, or a patent that is being contested in court are all examples of Res Litigiosae. These things are in dispute and are awaiting a legal decision to determine who has the rightful ownership or control.