In the case of Mast, Foos & Co. v. Stover Manufacturing Company in 1899, the U.S Supreme Court was tasked with resolving a patent dispute between two companies involved in manufacturing windmills and related machinery. The plaintiff, Mast, Foos & Co., alleged that Stover Manufacturing Company had infringed on their patent rights by producing similar products without permission or licensing agreements. However, upon examination of both patents and products at hand, the court found significant differences between them which were enough to rule out any infringement claims made by Mast, Foos & Co.. Therefore,the Supreme Court ruled in favor of Stover Manufacturing Company stating that they did not infringe on any patents held by Mast,Foos & Co as there was no substantial similarity between their respective inventions.

In the dissenting opinion for Mast, Foos & Co. v. Stover Manufacturing Company, it was argued that the majority's decision to uphold a lower court ruling favoring Stover Manufacturing Company in a patent dispute was incorrect. The dissent contended that there were significant differences between the two designs at issue and therefore no infringement had occurred. They believed that while both designs served similar functions, they achieved this through different means and mechanisms which should have been enough to distinguish them as separate inventions under patent law. This perspective emphasized on strict interpretation of what constitutes an invention or innovation worthy of protection under patent laws - focusing more on technical distinctions rather than overall functionality or purpose of the design.