The Warner v. Searle and Hereth Co. case in 1903 revolved around a patent dispute for a medicine formula. The plaintiff, William R. Warner & Co., alleged that the defendant, Searle and Hereth Company, infringed upon their patent rights by manufacturing and selling a similar medicinal product without authorization or license from them. The Supreme Court ruled in favor of the defendants stating that there was no infringement on the part of Searle and Hereth Company as they had not used any patented process to manufacture their product but rather relied on an older public domain method which did not violate any existing patents held by William R.Warner & Co.

The dissenting opinion in the Warner v. Searle and Hereth Co., case argued that the majority's decision to uphold a patent on a medicine formula was incorrect, as it contradicted previous rulings which stated that medical formulas could not be patented if they were merely an application of known substances or principles. The dissent contended that there was no new discovery or invention involved in this particular formula, but rather just a different combination of already known ingredients. Therefore, according to prior precedents set by the court itself, such combinations should not qualify for patents because they do not involve any novel idea or process. This view held that granting such patents would stifle competition and innovation within the pharmaceutical industry by allowing companies to monopolize common knowledge and methods under patent law protections.