In the case of Thorn Wire Hedge Company v. Washburn and Moen Manufacturing Company, 1895, the U.S Supreme Court dealt with issues related to patent infringement. The plaintiff, Thorn Wire Hedge Co., accused Washburn and Moen Manufacturing Co. of infringing on their patent for a particular type of barbed wire fencing by producing a similar product without permission or license from them. However, the court ruled in favor of the defendant stating that there was no infringement as both products were not identical nor did they operate in an identical manner despite some similarities in design and function. Furthermore, it was found that Thorn's patent only covered specific aspects of its product which were not copied by Washburn & Moen Mfg Co., hence there was no violation under existing laws governing patents at that time.

In the dissenting opinion for Thorn Wire Hedge Company v. Washburn and Moen Manufacturing Company, Justice Brewer argued that the patent in question was not a new invention but rather an improvement on existing technology. He contended that while improvements can be patented, they should not extend to monopolizing the original design or concept. In this case, he believed that granting such broad protection would stifle competition and innovation by preventing others from making their own enhancements or modifications to similar products. Furthermore, he expressed concern about potential abuse of patent laws if companies could secure exclusive rights over basic principles or ideas simply by being the first to apply them in a specific way.