The Supreme Court held that patent misuse made the patent unenforceable regarding monetary relief in "Morton Salt Co. v. G.S. Suppiger Co." Suppiger Co. owned a patent on salt-tablet dispensing machines that it manufactured. The sales agreement for the machines required customers to purchase salt tablets exclusively from Suppiger. Morton Salt Co., a competitor that also sold salt tablets, manufactured and leased dispensing machines that infringed Suppiger's patent. The Supreme Court denied Suppiger Co. compensation for Morton Salt's infringement, holding that Suppiger's patent was unenforceable because it was using it to restrain competition in unpatented salt. The Court said its ruling would not be different if Morton Salt were not Suppiger's competitor. The Court added that misuse could be found in conduct falling short of an antitrust violation.