In the case of Ward & Gow v. Krinsky et al., 1921, the United States Supreme Court dealt with a dispute over a patent for an invention related to shoe manufacturing. The plaintiffs, Ward & Gow, claimed that they had exclusive rights to manufacture and sell shoes using this patented technology and accused the defendants, Krinsky et al., of infringing on their patent rights by producing similar shoes without permission. However, upon examination of evidence presented in court including expert testimonies and physical exhibits (the actual shoes), it was determined that there were significant differences between the two designs which rendered them distinct from each other despite some similarities in function or appearance. Therefore, it was concluded that no infringement had taken place as alleged by Ward & Gow since both parties' products were based on different mechanisms even if they served similar purposes in shoemaking process. Thus ruling favored Krinsky et al., upholding their right to continue production without any legal impediments imposed due to supposed violation of patent laws.

The dissenting opinion in the case of Ward & Gow v. Krinsky et al., 1921, argued that the majority's decision to uphold a lower court ruling against a theater owner for injuries sustained by an attendee due to falling scenery was incorrect. The dissent contended that there was no evidence presented at trial proving negligence on part of the theater owners or their employees. It further stated that it is not reasonable to hold proprietors liable for accidents unless they had knowledge or reason to believe such incidents could occur and failed to take necessary precautions. In this particular case, according to the dissenters, there were no prior instances indicating any danger from falling scenery; hence holding them responsible would be unjustified as per common law principles governing liability in such situations.