Patent Claim Construction is the first comprehensive treatise on claim construction in the U.S. Court of Appeals for the Federal Circuit. This practical resource helps lawyers of all experience levels gain a firm footing in the rapidly evolving rules of claim construction. This knowledge thereby allows for the systematic and efficient identification of the rules most advantageous to the client's position. The book offers expert analysis of emerging methodologies, reflected in current case law for interpreting patents as a matter of the law and detailed descriptions of the cases applying the rule, as well as commentary describing the trend toward or away from favoring that particular rule. Additionally, the author includes a complete guide to the evidence, or modes of proof, accepted by the courts in applying claim construction principles and specific guidance on how the courts are likely to interpret certain phrases, terms, or forms of claims.