In the case Dennison Manufacturing Co. v. Panduit Corp., 1985, the United States Supreme Court dealt with a patent dispute between two companies over cable ties, which are used to bundle wires together. The plaintiff, Panduit Corp., held a patent for these ties and sued Dennison Manufacturing Co. for infringement after they began producing similar products. In court proceedings, it was determined that Dennison had indeed infringed upon Panduit's patent rights by manufacturing and selling identical items without permission or license from Panduit Corporation. The main issue in this case revolved around damages awarded to the plaintiff; specifically how much profit loss was directly attributable to defendant's infringing activities as opposed to other market factors such as competition or economic conditions. Initially, lower courts ruled in favor of Panduit but on appeal at Federal Circuit level it was decided that not all profits lost by them could be attributed solely to defendant’s actions thus reducing damage award significantly. However when appealed again before US Supreme Court , they upheld original ruling stating that under established legal principles regarding patents - if an infringer is found guilty then he must pay full amount of profits lost due his illegal activity regardless of any other contributing factors.

In the dissenting opinion for Dennison Manufacturing Co. v. Panduit Corp., the justice disagreed with the majority's decision to uphold a lower court ruling that awarded lost profits as damages in a patent infringement case. The dissent argued that this approach was inconsistent with established legal principles and could lead to excessive damage awards, potentially stifering innovation and competition in industries where patents are common. Instead, they suggested using an alternative method of calculating damages based on reasonable royalties or price erosion caused by the infringement, which would be more fair and predictable than estimating lost profits.