In the 1901 case of Holzapfel's Compositions Company v. Rahtjen's American Composition Company, the U.S Supreme Court dealt with a patent dispute between two companies over an invention for improving compositions used in anti-fouling paint. The plaintiff, Holzapfel’s Compositions Co., alleged that Rahtjen’s American Composition Co. had infringed on their patent rights by using and selling their patented composition without permission or license. However, the defendant argued that they were not infringing because they did not use one of the key ingredients specified in Holzapfel's patent claim - arsenic acid or its equivalent - but instead used copper oxide which was claimed to be different from arsenic acid. The court ruled in favor of Rahtjen’s company stating that there was no infringement as it found significant differences between copper oxide and arsenic acid based on expert testimonies presented during trial proceedings about these substances' properties and effects when used in anti-fouling paints.

In the dissenting opinion for Holzapfel's Compositions Company v. Rahtjen's American Composition Company, it was argued that the majority had erred in their interpretation of patent law and its application to this case. The dissent believed that Holzapfel’s process did not infringe upon Rahtjen’s patent because it was a distinct method with different results, despite similarities in materials used. They contended that patents should only protect specific methods or processes as described by inventors themselves, rather than broad concepts or general principles which could stifle innovation and competition. By ruling in favor of Rahtjen's company on such grounds, they feared the court risked setting a dangerous precedent where any slight similarity between two products or processes could be deemed an infringement regardless of actual uniqueness or originality involved.