Strong evidence is essential when evaluating a potential patent infringement dispute. Patent enforcement may require documentation showing how an accused product or process relates to the claims of a patent. Technical comparisons, product samples, public records, and expert analysis can help clarify important issues. Businesses should also preserve relevant communications and supporting documents. Careful evidence collection enables legal teams to assess infringement allegations, identify possible weaknesses, and prepare for negotiations or litigation. Understanding these requirements helps patent owners approach disputes with greater clarity and preparation.