In the case of Singer Manufacturing Company v. Wright in 1891, the US Supreme Court ruled on a dispute involving patent rights and royalties between two sewing machine companies. The plaintiff, Singer Manufacturing Company, accused George B. Sloat & Co., represented by Mr. Wright as trustee in bankruptcy, of infringing upon their patented inventions related to sewing machines without paying proper royalties or obtaining permission for usage. The court found that while some components used by Sloat & Co were similar to those patented by Singer, they did not constitute an infringement because these parts were common knowledge within the industry at the time when Singer obtained its patents and therefore could not be exclusively claimed under patent law. Furthermore, it was determined that even if there had been any infringement (which was denied), no damages would have been awarded since there was no evidence showing loss suffered due to such alleged infringements. This ruling reinforced principles regarding what constitutes a valid claim under patent law and emphasized that mere similarities do not necessarily equate to violations of intellectual property rights.

The dissenting opinion in the Singer Manufacturing Company v. Wright case argued that the majority's decision to uphold a tax on sewing machines was incorrect because it violated principles of interstate commerce. The dissent contended that, by taxing an item manufactured and sold in another state, Alabama had effectively imposed a tariff on goods from other states, which is constitutionally prohibited. They further argued that such taxes could lead to retaliatory measures between states and disrupt national unity. Additionally, they disagreed with the majority's interpretation of what constitutes "use" under Alabama law; while the majority held that any use within state borders justified taxation, the dissent believed this definition was overly broad and would allow for unjust taxation practices.