In the 1923 case Heyer, Doing Business as T.A. Heyer Duplicator Company v. Duplicator Manufacturing Company, the U.S Supreme Court dealt with a dispute over patent rights and infringement claims. The plaintiff, T.A. Heyer Duplicator Company (Heyer), alleged that the defendant, Duplicator Manufacturing Company (DMC), had infringed on their patented design for a duplicating machine by producing similar machines without authorization or license from them. However, upon review of evidence and arguments presented in lower courts, it was determined that there were significant differences between both companies' designs which made them distinct from each other despite serving similar functions - thus no direct copying or imitation took place as claimed by Heyer against DMC's product line-up; hence no patent infringement occurred according to legal standards applicable at that time period under US law concerning intellectual property rights protection measures related to inventions & innovations within industrial sectors like manufacturing etc., where technological advancements often lead to creation of new products based on existing ones but with improvements/modifications added onto original versions thereof.

The dissenting opinion in the case of Heyer v. Duplicator Manufacturing Company argued that the majority's decision to uphold a patent infringement claim was incorrect. The dissent believed that there was not enough evidence to prove that Heyer had infringed upon Duplicator Manufacturing Company's patent rights, as it was unclear whether his product used exactly the same method or merely a similar one. They also disagreed with the majority's interpretation of what constituted an "invention", arguing that just because two products perform similar functions does not mean they are identical in design or process. Furthermore, they felt this ruling could potentially stifle innovation and competition by making it too easy for companies to claim patent infringement based on superficial similarities between products.