In the 1903 case of Hewit v. Berlin Machine Works, the United States Supreme Court addressed a dispute over patent rights. The plaintiff, Hewit, claimed that Berlin Machine Works had infringed on his patented design for an improvement in paper-making machines. However, the defendant argued that they had not violated any patents as their machine was based on an earlier model which predated Hewit's patent and was thus part of public domain knowledge. The Supreme Court ruled in favor of Berlin Machine Works stating that if two devices accomplish the same result in substantially different ways then one cannot be said to infringe upon another’s patent even though it accomplishes precisely the same result; hence there was no infringement by Berlin Machine Works on Hewitt's patent.

In the dissenting opinion for Hewit v. Berlin Machine Works, it was argued that the majority's decision to uphold a patent claim on an invention that had been in public use prior to its application was erroneous. The dissenting justices believed this ruling contradicted established principles of patent law and could potentially stifle innovation by allowing inventors to monopolize ideas they did not originate or develop independently. They also expressed concerns about the potential for abuse if patents were granted too easily, arguing that such a system would unfairly benefit those with resources at the expense of independent inventors and innovators who lacked financial backing or legal representation. This interpretation emphasized strict adherence to statutory requirements as essential safeguards against these risks, asserting that any deviation from these standards threatened both fairness and progress within American industry.