Determining whether a claimed invention is obvious under 35 U.S.C. § 103 often depends on whether the prior art provides a clear motivation for modifying existing knowledge. Central to this analysis is the concept of a “result-effective variable”—a parameter recognized in the prior art as influencing a particular property or outcome. If a variable is deemed result-effective, it suggests that a person of ordinary skill in the art (POSITA) would have been motivated to adjust or optimize that parameter in pursuit of improved results. However, if the prior art does not establish …
