In legal terms, to "patent" means to:

To "patent" in legal terms refers to the process of obtaining exclusive rights to an invention or a unique idea, which is accurately represented by the choice to obtain exclusive rights. When a person patents an invention, they are granted the legal authority to exclude others from making, using, or selling that invention without permission for a specified period. This ensures that the inventor can benefit from their work and protects their intellectual property.

The other choices do not align with the legal definition of patenting. Administering a tranquilizer pertains to medical terminology, having a significant effect relates to impact rather than legal ownership, and requiring conditions in an agreement speaks more to contractual obligations than to intellectual property rights. Each of these is distinctly different from the exclusive rights conferred by a patent.