The U.S. Supreme Court case Nassau Smelting & Refining Works, Ltd v. Brightwood Bronze Foundry Company in 1923 revolved around a dispute over patent infringement between the two companies. The plaintiff, Nassau Smelting & Refining Works, alleged that Brightwood Bronze Foundry had infringed on their patented process for making bronze alloys by using phosphor tin instead of pure tin and phosphorus separately in the alloying process. The defendant argued that they were not infringing because they used a different method to achieve similar results. In its decision, the Supreme Court ruled in favor of Brightwood Bronze Foundry Company stating that while both processes resulted in similar products, the methods used were fundamentally different and therefore did not constitute patent infringement.

The dissenting opinion in the case of Nassau Smelting & Refining Works, Ltd v. Brightwood Bronze Foundry Company argued that the majority's decision to uphold a lower court ruling against Nassau was incorrect. The dissent believed that there were significant issues with how evidence was presented and interpreted during trial proceedings, which should have led to a reversal of the initial judgment. They contended that certain key pieces of evidence were not given due consideration by either the jury or judge, leading to an unfair outcome for Nassau. Furthermore, they disagreed with the majority's interpretation of patent law as it applied to this particular case - specifically regarding what constitutes infringement on another company’s patented process or design – arguing instead for a more nuanced understanding based on established legal principles and precedents.