What is the legal proceeding conducted to determine and enforce particular contract rights?

The correct answer is litigation, as it refers to the legal process undertaken in a court to resolve disputes, including those related to contract rights. In the context of contract disputes, litigation involves one party suing another to enforce the terms of the contract, claim damages, or seek a judgment related to the contract's execution. This process allows for the examination of evidence, the presentation of arguments, and ultimately a decision made by a judge or jury based on the law and facts of the case.

Other options pertain to different legal concepts. For instance, patenting focuses on securing exclusive rights to inventions and does not directly relate to contract rights. Arbitration is an alternative dispute resolution method allowing parties to settle disputes outside of court, which can also involve contract issues but differs from litigation as it does not typically go through the formal court system. WIPO, or the World Intellectual Property Organization, primarily deals with international intellectual property issues and processes, rather than contract enforcement directly. Thus, litigation is the appropriate term for the legal proceeding that specifically seeks to determine and enforce contract rights.