Magēmā Technology LLC v. Phillips 66 Court Case Analysis

This document is a legal opinion from the United States Court of Appeals for the Federal Circuit regarding the case of Magēmā Technology LLC versus Phillips 66. The appeal arises from a decision made by the United States District Court for the Southern District of Texas, where the jury returned a verdict of noninfringement on two claims of Magēmā's patent. The case centers on the introduction of a new theory of noninfringement by Phillips, which the District Court deemed improper and prejudicial. However, the court concluded that the introduction was harmless. The appellate court disagrees, stating that it cannot determine the basis for the jury's verdict and remands the case for a new trial. The document also discusses the background of the case, including the relevant international standards for heavy marine fuel oil and the patented technology developed by Magēmā to desulfurize fuel to meet these standards. The court's findings on claim construction and the definitions of terms related to the patent are also outlined.