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.